Caerphilly - Mid Glamorgan, UK
Caerphilly Castle is enormous, and is one of the most impressive fortifications in the United Kingdom. It features complex land and water defenses.
A broad range of medieval architecture is used in this castle that covers a 30-acre expanse. This castle is famous for its southeastern tower that leans to the point that it looks as if it is frozen in mid-fall. Parliamentarians failed to demolish it, a testament to the strength of the castle walls.
Caerphilly was built in the 13th century and historians consider this structure to be the finest and earliest example of a true, regular concentric fortification in all of the United Kingdom. This castle houses a collection of massive, working siege engines like trebuchets and catapults.