Tube stations are underground train stops that are part of the London Underground system, commonly known as the Tube. They serve as key points for commuters and travelers, providing access to various parts of London and its surrounding areas. Each station is equipped with platforms, ticket machines, and often shops or services for passengers. The design of tube stations varies, with some featuring iconic architecture and artwork. Stations are marked by the recognizable London Underground roundel logo, making them easy to identify. The Tube operates on multiple lines, each distinguished by a different color on the Tube map, facilitating navigation for users.