in General Knowledge Installed in 1410 The World’s Oldest… by Chirag Chauhan June 21, 2018, 3:44 pm 65 Views Installed in 1410 The World’s Oldest Astronomical Clock still in operation is in Prague. Oldest Astronomical ClockPrague Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *