Many of these structures were constructed to look somewhat similar to European castles.

The fortress, which resembles an imposing European castle, is now a tourist attraction.

Plans for the tenshu, equivalent to the main keep of European castles, were drawn, but it was never built.

The building has an interesting appearance in that it resembles a European medieval castle.

This is one of the biggest European castles by area (41 426 m2).

In particular, an early type of European castle was known as a Motte-and-bailey.

The design of the towers was influenced by medieval European castle keeps.

"I'll take one of those to curry my backside in my European castle."

The castle itself has been described as "one of the most fascinating of all European castles."

The castle is widely believed to have been the first European castle to be built out of stone (at around 950).