Burg Ramsdorf, Medieval castle in Velen, Germany

Burg Ramsdorf is a rectangular brick building with stone detailing, erected in 1732 for the brothers Anton Heinrich and Alexander Jungeblodt at the market square of Ramsdorf. It incorporates remains of the 15th-century complex and a stout round tower at the west corner of a former 42 × 28 m moated site. The building is partly cellared, and a tiled floor was found above a barrel-vaulted cellar.

The castle was built in 1425 as a fortified structure with a surrounding wall and moat for defense. Most of these original fortifications have disappeared, leaving only the tower from that early period.

The Museum Burg Ramsdorf occupies the building and displays extensive exhibits on regional history. The structure itself shows how the site was reused: a textile factory stood on the grounds from 1878, and after the municipality bought the castle in 1928 the factory buildings were demolished and the complex was converted from 1930 into a centre for youth and local heritage work.

The museum rooms of Burg Ramsdorf occupy the surviving brick building at the west corner of the former 42 × 28 m castle area, right on the Marktplatz. The tower and the 1732 main house stand close together, so the exhibits are seen in a compact space. Visitors reach the site on foot from the surrounding streets of Ramsdorf.

The 1732 brick building reuses parts of the 15th-century complex, and the round tower at the west corner of the 42 × 28 m moated rectangle survives from the earlier castle. Excavations in 1979 and 2003 uncovered a vaulted cellar filled in by the early modern period, with a decorated tile floor above it.