Castel Del Monte

Federico II, the king of the Sicilies in the 13th century, built this as his hunting place in Apulia. Despite the name (castel) it isn’t a castle as it does not have the protection built in as the castles would have.
All the doors open on the way to welcome, or opened when it wasn’t just the remains of the building. This building is definitely on my top 10 buildings to visit around the world. The building has been there from the 13th century, it has seen so much around it. There are a lot of interesting theories and conspiracies about the details of this building.