Altenburgwarte, watchtower in Quedlinburg, Germany

Altenburgwarte is a five-sided tower located on a hill about 700 meters southwest of Quedlinburg. Originally built in the 14th or 15th century, it was rebuilt in 1889 by the Harz Club with a spiral staircase of about 51 steps inside, rising roughly 10 meters high.

The original watchtower was a round structure about five metres thick, built in the 14th or 15th century as part of Quedlinburg's system of watchtowers and earthen ramparts. From its weathered remains the Harz Club erected a new tower in 1889. After several restorations it now serves as a ten-metre-high five-sided viewing tower.

The name joins Altenburg hill with Warte, the local term for a watch post of the Quedlinburg line of watchtowers and earthen banks. The sandstone ridge, about 198 metres high, is still walked by hikers; the tower is a listed heritage monument.

The tower stands on the Altenburg ridge at about 198 metres, roughly 700 metres southwest of Quedlinburg's old town. The platform is reached by a spiral staircase of over 51 steps, so sturdy shoes help. There are no facilities at the site; the sandstone ridge is best visited in clear weather for the view.

The original watchtower was a round structure about five metres thick, built in the 14th or 15th century. The Harz Club erected the present tower in 1889 from its weathered remains, and the platform is reached by a spiral staircase of over 51 steps.