Burg Geyen, Medieval castle in Pulheim, Germany

Burg Geyen is a former moated castle in Geyen, a district of Pulheim, first documented in the 14th century. Its roughly square complex has a round tower and a rectangular tower at the northern and western corners of the courtyard. The inner courtyard is reached only by a stone bridge on the north side; the slots for the chains of an earlier drawbridge are still visible. All buildings except one half-timbered structure are made of brick.

The castle was first documented in 1337 as a knight's estate and served as a toll station between Cologne and Jülich territories. After the 1664 fire, it was rebuilt with baroque elements.

The castle displays medieval construction methods with its water-filled moats and later baroque additions after the 1664 fire. The architecture reflects the regional defensive traditions of that era.

The castle sits at the northern edge of Geyen toward Pulheim and is surrounded by the Pulheimer Bach stream, which once filled its moats. The site is easy to reach and offers clear reference points for navigation.

The slots for the chains of the former drawbridge are still visible, but not in a stone structure: apart from one half-timbered building, all the buildings of the castle are made of brick. The brick rebuild followed a fire in 1664 and replaced the earlier structure in baroque style.