diff --git a/AutobusApi.Domain/Common/EntityBase.cs b/AutobusApi.Domain/Common/EntityBase.cs
new file mode 100644
index 0000000..38cd4dc
--- /dev/null
+++ b/AutobusApi.Domain/Common/EntityBase.cs
@@ -0,0 +1,8 @@
+namespace AutobusApi.Domain.Common;
+
+public class EntityBase
+{
+    public required int Id { get; set; }
+
+    public required bool IsDeleted { get; set; }
+}
diff --git a/AutobusApi.Domain/Entities/Address.cs b/AutobusApi.Domain/Entities/Address.cs
new file mode 100644
index 0000000..f2594c1
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Address.cs
@@ -0,0 +1,20 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+using AutobusApi.Domain.IEntities;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Address : EntityBase
+{
+    public required string Name { get; set; }
+
+    public required ICoordinates Location { get; set; }
+
+    public required VehicleType VehicleType { get; set; }
+
+    public ICollection<RouteAddress> RouteAddresses { get; set; } = null!;
+
+    public required int CityId { get; set; }
+
+    public City City { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Aircraft.cs b/AutobusApi.Domain/Entities/Aircraft.cs
new file mode 100644
index 0000000..5148393
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Aircraft.cs
@@ -0,0 +1,16 @@
+namespace AutobusApi.Domain.Entities;
+
+public class Aircraft : Vehicle
+{
+    public Vehicle Vehicle { get; set; } = null!;
+
+    public required string Number { get; set; }
+
+    public required string Model { get; set; }
+
+    public required int Capacity { get; set; }
+
+    public required bool HasWiFi { get; set; }
+
+    public required bool HasMultimedia { get; set; }
+}
diff --git a/AutobusApi.Domain/Entities/Bus.cs b/AutobusApi.Domain/Entities/Bus.cs
new file mode 100644
index 0000000..3538c26
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Bus.cs
@@ -0,0 +1,22 @@
+namespace AutobusApi.Domain.Entities;
+
+public class Bus : Vehicle
+{
+    public Vehicle Vehicle { get; set; } = null!;
+
+    public required string Number { get; set; }
+
+    public required string Model { get; set; }
+
+    public required int Capacity { get; set; }
+
+    public required bool HasClimateControl { get; set; }
+
+    public required bool HasWC { get; set; }
+
+    public required bool HasWiFi { get; set; }
+
+    public required bool HasMultimedia { get; set; }
+
+    public required bool HasOutlets { get; set; }
+}
diff --git a/AutobusApi.Domain/Entities/Carriage.cs b/AutobusApi.Domain/Entities/Carriage.cs
new file mode 100644
index 0000000..d737a48
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Carriage.cs
@@ -0,0 +1,19 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Carriage : EntityBase
+{
+    public required CarriageType Type { get; set; }
+
+    public required int Capacity { get; set; }
+
+    public required int Number { get; set; }
+
+    public required bool HasWiFi { get; set; }
+
+    public required bool HasOutlets { get; set; }
+
+    public ICollection<TrainCarriage> TrainCarriage { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/City.cs b/AutobusApi.Domain/Entities/City.cs
new file mode 100644
index 0000000..ac50496
--- /dev/null
+++ b/AutobusApi.Domain/Entities/City.cs
@@ -0,0 +1,14 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class City : EntityBase
+{
+    public required string Name { get; set; }
+
+    public ICollection<Address> Addresses { get; set; } = null!;
+
+    public required int RegionId { get; set; }
+
+    public Region Region { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Company.cs b/AutobusApi.Domain/Entities/Company.cs
new file mode 100644
index 0000000..1ff4d97
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Company.cs
@@ -0,0 +1,18 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Company : EntityBase
+{
+    public required string Name { get; set; }
+
+    public required string LegalAddress { get; set; }
+
+    public required string ContactEmail { get; set; }
+
+    public required string ContactPhoneNumber { get; set; }
+
+    public ICollection<Vehicle> Vehicles { get; set; } = null!;
+
+    public ICollection<Employee> Employees { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Country.cs b/AutobusApi.Domain/Entities/Country.cs
new file mode 100644
index 0000000..ddb860e
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Country.cs
@@ -0,0 +1,10 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Country : EntityBase
+{
+    public required string Name { get; set; }
+
+    public ICollection<Region> Regions { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Employee.cs b/AutobusApi.Domain/Entities/Employee.cs
new file mode 100644
index 0000000..6e32101
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Employee.cs
@@ -0,0 +1,25 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Employee : EntityBase
+{
+    public required string FisrtName { get; set; }
+
+    public required string LastName { get; set; }
+
+    public required string Patronymic { get; set; }
+
+    public required Sex Sex { get; set; }
+
+    public required DateOnly BirthDate { get; set; }
+
+    public required int EmployerCompanyId { get; set; }
+
+    public Company EmployerCompany { get; set; } = null!;
+
+    public ICollection<EmployeeDocument> Documents { get; set; } = null!;
+
+    public ICollection<VehicleEnrollmentEmployee> Shifts { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/EmployeeDocument.cs b/AutobusApi.Domain/Entities/EmployeeDocument.cs
new file mode 100644
index 0000000..2fda8e5
--- /dev/null
+++ b/AutobusApi.Domain/Entities/EmployeeDocument.cs
@@ -0,0 +1,15 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+
+namespace AutobusApi.Domain.Entities;
+
+public class EmployeeDocument : EntityBase
+{
+    public required EmployeeDocumentType Type { get; set; }
+
+    public required string Information { get; set; }
+
+    public required int EmployeeId { get; set; }
+
+    public Employee Employee { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Region.cs b/AutobusApi.Domain/Entities/Region.cs
new file mode 100644
index 0000000..6fc3d39
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Region.cs
@@ -0,0 +1,14 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Region : EntityBase
+{
+    public required string Name { get; set; }
+
+    public ICollection<City> Cities { get; set; } = null!;
+
+    public required int CountryId { get; set; }
+
+    public Country Country { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Review.cs b/AutobusApi.Domain/Entities/Review.cs
new file mode 100644
index 0000000..485eace
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Review.cs
@@ -0,0 +1,20 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Review : EntityBase
+{
+    public required int Rating { get; set; }
+
+    public required string? Comment { get; set; }
+
+    public required DateTime PostDateTimeUtc { get; set; }
+
+    public required int UserId { get; set; }
+
+    public User User { get; set; } = null!;
+
+    public required int VehicleEnrollmentId { get; set; }
+
+    public VehicleEnrollment VehicleEnrollment { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Route.cs b/AutobusApi.Domain/Entities/Route.cs
new file mode 100644
index 0000000..5280297
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Route.cs
@@ -0,0 +1,10 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Route : EntityBase
+{
+    public ICollection<RouteAddress> RouteAddresses { get; set; } = null!;
+
+    public ICollection<VehicleEnrollment> VehicleEnrollments { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/RouteAddress.cs b/AutobusApi.Domain/Entities/RouteAddress.cs
new file mode 100644
index 0000000..50b3bbe
--- /dev/null
+++ b/AutobusApi.Domain/Entities/RouteAddress.cs
@@ -0,0 +1,18 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class RouteAddress : EntityBase
+{
+    public required int Order { get; set; }
+
+    public required int AddressId { get; set; }
+
+    public Address Address { get; set; } = null!;
+
+    public required int RouteId { get; set; }
+
+    public Route Route { get; set; } = null!;
+
+    public ICollection<RouteAddressDetails> RouteAddressDetails { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/RouteAddressDetails.cs b/AutobusApi.Domain/Entities/RouteAddressDetails.cs
new file mode 100644
index 0000000..bcc73a8
--- /dev/null
+++ b/AutobusApi.Domain/Entities/RouteAddressDetails.cs
@@ -0,0 +1,20 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class RouteAddressDetails : EntityBase
+{
+    public required TimeSpan TimeToNextAddress { get; set; }
+
+    public required double CostToNextAddress { get; set; }
+
+    public required TimeSpan CurrentAddressStopTime { get; set; }
+
+    public required int RouteAddressId { get; set; }
+
+    public RouteAddress RouteAddress { get; set; } = null!;
+
+    public required int VehicleEnrollmentId { get; set; }
+
+    public VehicleEnrollment VehicleEnrollment { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Ticket.cs b/AutobusApi.Domain/Entities/Ticket.cs
new file mode 100644
index 0000000..03e7017
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Ticket.cs
@@ -0,0 +1,14 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Ticket : EntityBase
+{
+    public required int TicketGroupId { get; set; }
+
+    public TicketGroup TicketGroup { get; set; } = null!;
+
+    public required int VehicleEnrollmentId { get; set; }
+
+    public VehicleEnrollment VehicleEnrollment { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/TicketDocument.cs b/AutobusApi.Domain/Entities/TicketDocument.cs
new file mode 100644
index 0000000..9500602
--- /dev/null
+++ b/AutobusApi.Domain/Entities/TicketDocument.cs
@@ -0,0 +1,15 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+
+namespace AutobusApi.Domain.Entities;
+
+public class TicketDocument : EntityBase
+{
+    public required TicketDocumentType Type { get; set; }
+
+    public required string Information { get; set; }
+
+    public required int TicketGroupId { get; set; }
+
+    public TicketGroup TicketGroup { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/TicketGroup.cs b/AutobusApi.Domain/Entities/TicketGroup.cs
new file mode 100644
index 0000000..00125b6
--- /dev/null
+++ b/AutobusApi.Domain/Entities/TicketGroup.cs
@@ -0,0 +1,39 @@
+using AutobusApi.Domain.Common;
+using AutobusApi.Domain.Enums;
+
+namespace AutobusApi.Domain.Entities;
+
+public class TicketGroup : EntityBase
+{
+    public required string BuyerFirstName { get; set; }
+
+    public required string BuyerLastName { get; set; }
+
+    public required string BuyerPhoneNumber { get; set; }
+
+    public required string BuyerEmailAddress { get; set; }
+
+    public required string PassengerFirstName { get; set; }
+
+    public required string PassengerLastName { get; set; }
+
+    public required string PassengerPatronymic { get; set; }
+
+    public required Sex PassengerSex { get; set; }
+
+    public required DateOnly PassengerBirthDate { get; set; }
+
+    public required DateTime PurchaseDateTimeUtc { get; set; }
+
+    public required bool IsReturned { get; set; }
+
+    public int? UserId { get; set; }
+
+    public User? User { get; set; }
+
+    public required int TicketDocumentId { get; set; }
+
+    public TicketDocument TicketDocument { get; set; } = null!;
+
+    public ICollection<Ticket> Tickets { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Train.cs b/AutobusApi.Domain/Entities/Train.cs
new file mode 100644
index 0000000..f3a07ec
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Train.cs
@@ -0,0 +1,10 @@
+namespace AutobusApi.Domain.Entities;
+
+public class Train : Vehicle
+{
+    public Vehicle Vehicle { get; set; } = null!;
+
+    public required string Number { get; set; }
+
+    public ICollection<TrainCarriage> TrainCarriage { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/TrainCarriage.cs b/AutobusApi.Domain/Entities/TrainCarriage.cs
new file mode 100644
index 0000000..cc41180
--- /dev/null
+++ b/AutobusApi.Domain/Entities/TrainCarriage.cs
@@ -0,0 +1,14 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class TrainCarriage : EntityBase
+{
+    public required int TrainId { get; set; }
+
+    public Train Train { get; set; } = null!;
+
+    public required int CarriageId { get; set; }
+
+    public Carriage Carriage { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/User.cs b/AutobusApi.Domain/Entities/User.cs
new file mode 100644
index 0000000..858f56f
--- /dev/null
+++ b/AutobusApi.Domain/Entities/User.cs
@@ -0,0 +1,10 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class User : EntityBase
+{
+    public ICollection<TicketGroup> TicketGroups { get; set; } = null!;
+
+    public ICollection<Review> Reviews { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/Vehicle.cs b/AutobusApi.Domain/Entities/Vehicle.cs
new file mode 100644
index 0000000..3bd58ac
--- /dev/null
+++ b/AutobusApi.Domain/Entities/Vehicle.cs
@@ -0,0 +1,12 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class Vehicle : EntityBase
+{
+    public required int CompanyId { get; set; }
+
+    public Company Company { get; set; } = null!;
+
+    public ICollection<VehicleEnrollment> Enrollments { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/VehicleEnrollment.cs b/AutobusApi.Domain/Entities/VehicleEnrollment.cs
new file mode 100644
index 0000000..ebf9c71
--- /dev/null
+++ b/AutobusApi.Domain/Entities/VehicleEnrollment.cs
@@ -0,0 +1,24 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class VehicleEnrollment : EntityBase
+{
+    public required DateTime DepartureDateTimeUtc { get; set; }
+
+    public required int VehicleId { get; set; }
+
+    public Vehicle Vehicle { get; set; } = null!;
+
+    public required int RouteId { get; set; }
+
+    public Route Route { get; set; } = null!;
+
+    public ICollection<RouteAddressDetails> RouteAddressDetails { get; set; } = null!;
+
+    public ICollection<VehicleEnrollmentEmployee> Crew { get; set; } = null!;
+
+    public ICollection<Ticket> Tickets { get; set; } = null!;
+
+    public ICollection<Review> Reviews { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Entities/VehicleEnrollmentEmployee.cs b/AutobusApi.Domain/Entities/VehicleEnrollmentEmployee.cs
new file mode 100644
index 0000000..10271b7
--- /dev/null
+++ b/AutobusApi.Domain/Entities/VehicleEnrollmentEmployee.cs
@@ -0,0 +1,14 @@
+using AutobusApi.Domain.Common;
+
+namespace AutobusApi.Domain.Entities;
+
+public class VehicleEnrollmentEmployee : EntityBase
+{
+    public required int EmployeeId { get; set; }
+
+    public Employee Employee { get; set; } = null!;
+
+    public required int VehicleEnrollmentId { get; set; }
+
+    public VehicleEnrollment VehicleEnrollment { get; set; } = null!;
+}
diff --git a/AutobusApi.Domain/Enums/CarriageType.cs b/AutobusApi.Domain/Enums/CarriageType.cs
new file mode 100644
index 0000000..8886894
--- /dev/null
+++ b/AutobusApi.Domain/Enums/CarriageType.cs
@@ -0,0 +1,7 @@
+namespace AutobusApi.Domain.Enums;
+
+public enum CarriageType
+{
+    Coupe = 0,
+    ReservedSeat = 1
+}
diff --git a/AutobusApi.Domain/Enums/EmployeeDocumentType.cs b/AutobusApi.Domain/Enums/EmployeeDocumentType.cs
new file mode 100644
index 0000000..4a48798
--- /dev/null
+++ b/AutobusApi.Domain/Enums/EmployeeDocumentType.cs
@@ -0,0 +1,6 @@
+namespace AutobusApi.Domain.Enums;
+
+public enum EmployeeDocumentType
+{
+    Passport = 0
+}
diff --git a/AutobusApi.Domain/Enums/Sex.cs b/AutobusApi.Domain/Enums/Sex.cs
new file mode 100644
index 0000000..8f89e87
--- /dev/null
+++ b/AutobusApi.Domain/Enums/Sex.cs
@@ -0,0 +1,7 @@
+namespace AutobusApi.Domain.Enums;
+
+public enum Sex
+{
+    Male = 0,
+    Female = 1,
+}
diff --git a/AutobusApi.Domain/Enums/TicketDocumentType.cs b/AutobusApi.Domain/Enums/TicketDocumentType.cs
new file mode 100644
index 0000000..42750df
--- /dev/null
+++ b/AutobusApi.Domain/Enums/TicketDocumentType.cs
@@ -0,0 +1,6 @@
+namespace AutobusApi.Domain.Enums;
+
+public enum TicketDocumentType
+{
+    Passport = 0
+}
diff --git a/AutobusApi.Domain/Enums/VehicleType.cs b/AutobusApi.Domain/Enums/VehicleType.cs
new file mode 100644
index 0000000..3f250d6
--- /dev/null
+++ b/AutobusApi.Domain/Enums/VehicleType.cs
@@ -0,0 +1,8 @@
+namespace AutobusApi.Domain.Enums;
+
+public enum VehicleType
+{
+    Bus = 0,
+    Train = 1,
+    Aircraft = 2
+}
diff --git a/AutobusApi.Domain/IEntities/ICoordinates.cs b/AutobusApi.Domain/IEntities/ICoordinates.cs
new file mode 100644
index 0000000..f53a7d9
--- /dev/null
+++ b/AutobusApi.Domain/IEntities/ICoordinates.cs
@@ -0,0 +1,8 @@
+namespace AutobusApi.Domain.IEntities;
+
+public interface ICoordinates
+{
+    double Latitude { get; }
+
+    double Longitude { get; }
+}