Moerenpoort, Medieval city gate and military museum in Tongeren, Belgium.

The Moerenpoort is a stone gate structure with a defense tower in Tongeren, featuring thick walls and protective elements built using medieval construction methods. The tower forms the core of this fortification and houses the museum exhibitions.

The Moerenpoort was first built between 1257 and 1264 on the remains of the Roman wall from the 2nd century AD, as one of six gates in Tongeren's new city walls. It was destroyed in 1347 by soldiers of the former prince-bishop Adolf II van der Mark, and its reconstruction began in 1379. The French destroyed its forebuilding in 1673, but the gate itself was spared through an agreement with the residents of the Sint-Catharina Begijnhof.

The museum inside presents objects related to the city's military past, including weapons, documents, and information about how people defended Tongeren. Visitors can learn what part this structure played in protecting the community.

Access to the museum tower is arranged through Visit Tongeren or the Teseum; the 2011 restoration added a new entrance to the tower. Each floor covers a different theme: the gate and its function, life in and around the gate, and the great fire of Tongeren in August 1677. The top platform looks over the beguinage and the De Kevie nature park.

From the top of the tower, visitors can look out across the medieval beguinage district and the old town center of Tongeren below. This vantage point reveals how the medieval streets and buildings fit together in ways not visible from street level.