Reef Fort: Treasures of the Russian Tsar must be hidden somewhere here
Kildrummy Castle the scene of numerous sieges and historical dramas
The Kesaria Stupa in India – built to honor Buddha’s final days
The abandoned Hartwood Mental Hospital – Scotland’s first lobotomy site
An old sugar mill on the island of Kauai – check out the drone footage
Oradour-sur-Glane the village destroyed by the Nazis – watch the drone footage
