This the abandoned control room in an unused part of a thermal power plant near Budapest, Hungary. The control room, with its Art Deco opal glass ceiling, was designed by Hungarian architect Reichl Kalman in 1926. It is listed and protected by law so that it can't be demolished, but it is not being maintained or preserved and is not open to the public.
On April 26, 1986, operators in this control room of reactor No. 4 at the Chernobyl Nuclear Power Plant committed a fatal series of errors during a safety test, triggering a reactor meltdown that resulted in the world's largest nuclear accident to date. Today, the control room sits abandoned and deadly radioactive. Chernobyl Nuclear Power Plant, Ukraine, 2005 (Gerd Ludwig/INSTITUTE)