Today, even recent architecture is under threat. It has taken nine years of campaigning by the C20 Society to get Southwark Tube Station (built 1994-99) Grade II listed. It was one of the six new stations on the Jubilee Line Extension, and the C20 Society says, "the joyful experience of travelling from street to platform is a carefully choreographed delight. From the drum shaped entrance that recalls Charles Holden’s classic 1930s Arnos Grove tube station, to the subterranean skylit hall with artist Alexander Beleschenko’s dramatic geometric blue glass wall, this is transport infrastructure elevated to the sublime".