Medieval fortress ( castle) Het Steen is the oldest construction of the Antwerp city, Belgium against the background of a blue cloudy sky. View from the central entrance. Tourist attraction - Stock Photo & Image

ANTWERPEN, BELGIUM - MAY 06, 2018: The Stan Castle is a fortress in the center of Antwerp, part of the city wall. The Antwerp fortress of Sten was built in the XIII century.

National Maritime Museum "The Steen" in Antwerp, Belgium.

National Maritime Museum "The Steen" in Antwerp, Belgium.

Close-up of the Steen castle in Antwerp, Belgium

Ancient castle Liechtenstein, donjon, Vienna woods, village Maria Enzersdorf, Austria - against bright blue sky

Ancient castle Liechtenstein, top of central tower closeup, Vienna woods, village Maria Enzersdorf, Austria - against bright blue sky

Ancient mystical medieval castle Heidelberg at Renaissance style - fort ( Heidelberger Schloss ). Ruins on the background of the cloudy sky. Heidelberg town. Germany. Famous tourist destination, landmark

Ruins of ancient fortress: wall with windows against a cloudy blue sky. View from below. Castle in the Rhine Valley, Germany - UNESCO World Heritage

Ruins of castle Koenigstein ( Konigstein ) . Fortress wall against the blue cloudy sky, entrance to the castle. Koenigstein im Taunus, Hesse, Germany: historic town near Frankfurt.

Ancient castle Liechtenstein, donjon, Vienna woods, village Maria Enzersdorf, Austria - against bright blue sky

Haut-Koenigsbourg Castle , Chteau du Haut-Knigsbourg , medieval fortress outside, fortress wall close-up. Orschwiller, Alsace , France. Tourism destination, major tourist site, tourist attraction

Ancient mystical medieval castle Heidelberg at Renaissance style - fort ( Heidelberger Schloss ). Ruins and park . Heidelberg town. Germany. Famous tourist destination, landmark