Burg Münchhausen, Medieval castle in Wachtberg, Germany.

Burg Münchhausen is the oldest castle in Wachtberg, in the Adendorf district on the Swist. Of the original 12th/13th-century moated round complex, only the three-storey palas with a rounded outer wall, two towers, the bergfried and the gate tower remain. The bergfried and gate tower were raised by one storey at the end of the 13th century, and a blocked pointed arch of a former passage is visible in the gate tower's outer wall.

First mentioned in 893 in the Prüm records, the castle originally belonged to Prüm Abbey before passing through various noble families including the Counts of Are-Hochstaden and finally being donated to the Electorate of Cologne in 1246.

The castle served as both a defensive fortress and customs station along the coronation route to Aachen, reflecting its strategic importance in medieval trade and political ceremonies throughout the Rhine region.

The castle stands in the Adendorf district at the western edge of Wachtberg, beside the Swist stream. It now houses a riding farm with a restaurant, so visitors can stop for a meal; the historic buildings are best viewed from the outside. The site lies on the former coronation road to Aachen.

The castle incorporates recycled Roman building materials including concrete blocks and basalt foundations in its construction, demonstrating centuries of architectural evolution and resourceful building practices.