VISIT: The Coolest Castles in the World

Castel del Monte, Italy

Photo: Shutterstock

While most castles have towers spiraling into the sky, Castel del Monte reflects a different kind of medieval architecture. 

It takes attributes from not only European fortresses but reflects the elements of the Muslim world.

The inside was previously adorned with marble and mosaic decorative elements, but over time, they have deteriorated.