Aussichtsturm Karlshöhe, Observation tower in Halver, Germany.

Aussichtsturm Karlshöhe is a brick observation tower located in Halver with a height of approximately 23.5 meters. The structure includes a viewing platform that provides views across the Sauerland landscape.

The tower was designed in 1892 by the Hagen architect Gustav Mucke and built by the Halver firm Brückmann on the Karlshöhe, 438.5 m above sea level, for the Sauerländische Gebirgsverein. It cost 5,600 marks, raised largely through private donations, and was inaugurated with a grand ceremony on 10 July 1893. The city of Halver acquired it on 11 May 1911, and it has been a listed monument since 1983.

The tower serves as a gathering point for hikers and outdoor enthusiasts exploring the Sauerland landscape. It reflects the region's tradition of supporting public structures for community recreation and enjoyment.

The tower stands on the Karlshöhe at 438.5 metres above sea level, and the viewing platform is reached by climbing stairs; sturdy footwear is advised. The tower was closed to visitors for over ten years because of building damage before renovation work began again in 2018.

The local community raised funds over several years to preserve the historic structure. It was fully renovated and reopened to the public in 2020 following this dedicated effort.