from Weronika

from Stephanie

from Grażyna

from Julia

Khotyn Fortress

from Doyel

Kilchurn Castle

from Doyel

Eilean Donan Castle

from David

Schoenbrunn castle in Vienna.

from Natalia

from Maren

Elitz castle is a medieval building, still owned by the same family that lived there in the 12th century. 

from Ania

Kilchum castle is a 15th and 17th structure in Scotland. 

from David

from Paola

The Sforza castle in Milan, built in the 15th century.

from Doyel

Eilean Donan Castle is a castle located on an island Eilean Donan in Scotland. The castle was built in the 13th century and was a stronghold of Clan Mackenzie. In 2001 there was only one person living on the island. (wikipedia)

from Chris

Rosenborg is a renaissance castle in Copenhagen, built in  the 17th century. 

from Marianne

Åland Islands is a Swedish speaking, autonomous region of Finland on the Baltic Sea. 

Kastelholm is a medieval castle built in the 14th century, ruined in 1745, and rebuild in the 1930s.

from Lizvette

Neuschweinstein was built in 19th century. It's been open to public since 1886.

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from Stef

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from Marta