London's Famous 'Tube' Turns 150 Years Old This Week
Description:London's underground rail network, known as the "Tube" turns 150 years old this week. On January 9, 1863, London Underground opened the world's first underground railway in central London. It opened to the public a day later on January 10. Heavily overcrowded streets prompted Victorian engineers to dig underground rail tunnels in a feat of engineering which would eventually be copied around the world.(1:53)