Underground (London Underground)

The London Underground, commonly called the Tube, is an extensive railway system that operates mainly underground, serving Greater London and some surrounding areas. It was the world's first underground railway, opened in 1863, with a network of about 270 stations and over 400 kilometers of track. It provides fast, frequent transportation, connecting neighborhoods and central London efficiently. The system includes various lines color-coded for easy navigation, and it’s a vital part of the city’s public transportation, helping millions commute daily while reducing surface traffic congestion.