The Castle in Malbork is the largest castle in the world by surface area, and the largest brick building in Europe. It was built by the Teutonic Knights, a German Roman Catholic religious order of crusaders, in a form of an Ordensburg fortress. .
The castle is a classic example of a medieval fortress, and on its completion in 1406 was the world's largest brick castle.
UNESCO designated the "Castle of the Teutonic Order in Malbork" and its Museum as the World Heritage Site in December 1997.
Malbork Castle Virtual Tour