Travelers are voting Kew Observatory, Aldershot Observatory and Bayfordbury Observatory as the best of 4 observatories in London. There are 2 observatories in Reading a city just 36 km from London and 1 observatory in Amberley which is 44 km distant. The most popular of these are Kew Observatory in Reading and Aldershot Observatory in Amberley. You can find 16 Observatory in the country of United Kingdom and Royal Observatory Edinburgh is our members favorite Observatory in all of United Kingdom. Want more? Check out our map of observatories in London.