The Jubilee Line is a line on the London Underground that runs from Stanmore in the northwest to Stratford in the east. It was opened in 1979 and has undergone several extensions, with the most significant one completed in 1999. The line is known for its modern trains and serves key areas such as Westminster, Canary Wharf, and London Bridge. The Jubilee Line is colored silver on the Underground map and is one of the busiest lines in the network. It connects with several other lines, including the Bakerloo Line, Central Line, and District Line, making it a vital part of London's public transport system.