Hyde Park Corner (abandoned platforms)

Hyde Park Corner opened in 1906 on the Piccadilly line (back then called Piccadilly and Brompton Railway) and originally, it had a station building on the surface. The building on the surface was closed in 1932 and at the same time, the modern Hyde Park Corner station which is entirely underground was opened. Nowadays, a pizza restaurant called "The Wellesley" replaced the original station building, but there is still a staircase that would lead you down to where the abandoned platforms are.