Doune Castle in Castle in Callander, Scotland. This castle is a 14th century stronghold and was used as Castle Anthrax in Monty Python and the Holy Grail. A couple of scenes such as “Knights of the Round Table”. It was also in the scene where the “Daffy English Kniggits” argue with the French Knights ("Are you suggesting coconuts migrate?!")
Pretty cool eh? I’m not making this up. Google it!