Burg Eckelskirche, Medieval hill castle in Sterzhausen, Germany.

Burg Eckelskirche is a medieval hill castle ruin located on Wollenberg mountain in Sterzhausen at approximately 474 meters elevation. The site displays remnants of circular fortifications with diameters around 100 meters and visible ditches that illustrate the former scale of the fortified settlement.

The ringwork on the Wollenberg is thought to date from the Ottonian period, at the end of the Early Middle Ages. A local legend holds that many of its stones were later taken to build the Martinskirche in Michelbach. The site is now a castle site (Burgstall) with wall and ditch remains.

The site's name, Eckelskirche, points to a church that once stood here, though no trace of it remains. Local legend holds that many stones from the ringwall were taken to build the Martinskirche in Michelbach. The two large slabs on the northeastern stone mound are thought to have served as sacrificial stones or altars.

The ruins sit on elevated terrain, so sturdy footwear and sure footing are advisable, especially when the ground is damp. The approach is not paved, and signage is minimal, so plan to spend time exploring the site at your own pace.

The roughly 20 m long, 6 m wide and 1.5 m high stone mound in the northeast still holds two large stone slabs, which are thought to have served as sacrificial stones or altars. The ring wall itself measures 124 m east-west and 94 m north-south, enclosing 0.87 ha.