The Library
The Library was a huge library that existed around the 50th century. It contained every book ever written and spanned a whole planet, within its core was the largest hard drive ever, serving as an index computer.
It was commissioned by Felman Lux and was managed by a head librarian. The computer interface was mainly based on courtesy nodes, sculpture-like info terminals containing real faces made from donated flesh. It also contained levitating spherical wooden security cameras. Visitors were advised to switch off their mobile comm units.
At some point, The Library became infected by Vashta Nerada, apparently killing all 4022 visitors in the building at the time. However, a message sent at the time claimed that they were 'saved'. The computer sealed off the planet and it took 100 years (three generations of the Lux family) to decode the seals and arrange an archeological expedition led by Professor River Song to find out what happened. (DW: Silence in the Library)
