Crystal Palace Dinosaurs listed buildings from 1973, extensively restored in 2002, and upgraded to Grade I listed in 2007. The models represent fifteen genera of extinct animals, not all dinosaurs. They are from a wide range of geological ages, and include true dinosaurs, ichthyosaurs, and plesiosaurs mainly from the Mesozoic era, and some mammals from the more recent Cenozoic era. Following the closure of the Great Exhibition in October 1851, Joseph Paxton's Crystal Palace was bought and moved to Penge Place atop Sydenham Hill, South London by the newly formed Crystal Palace Company. The grounds that surrounded it were then extensively renovated and
Crystal Palace, London pneumatic railway was briefly trialed in the area in 1864. Once the railways arrived, Crystal Palace was eventually served by two railway stations, the high level and low level stations, built to handle the large volume of passengers visiting the Crystal Palace. After the palace was destroyed by fire, and with railway travel declining, passenger numbers fell and the high level station was closed in 1954 and demolished 7 years later. Rail services gradually declined, and for a period in the 1960s and 1970s, there were plans to construct an urban motorway through the area as part of the London