Königs Wusterhausen Water Tower, Water tower in Königs Wusterhausen, Germany.

The Königs Wusterhausen Water Tower is a 33-metre brick tower on the Funkerberg, built 1910–1912. Its main body has an octagonal plan with an unplastered facade, a limestone-veneer base and white-plastered helm and sphere; a narrower round stair turret with a slate-covered pickelhaube spire adjoins it. An open viewing walkway encircles the top storey, reached by a 110-step spiral staircase.

Built between 1910 and 1912 on the Funkerberg, the tower supplied Königs Wusterhausen with drinking water from a 300-cubic-metre tank. After 1949 it was run by the VEB (K) Stadtwerke; lack of maintenance and hygiene problems ended water supply in 1965. In 1980 citizens pushed for its listing as a monument, and after 1990 state, county and city funds allowed its restoration.

Since 1991 the tower has served as a venue for exhibitions, concerts, cabaret evenings and discussion rounds, with a restaurant added soon after. A tradition is the Turmblasen on Christmas Eve, when the trombone choir of the Kreuzkirche plays carols from the tower from 10 pm for about an hour, heard across the town and beyond.

The tower stands on the Funkerberg at Funkerberg, 15711 Königs Wusterhausen. The viewing platform is reached by a spiral staircase of 110 steps. The tower was closed to the public until 1989; it reopened in 1991 as an event space with a restaurant and observation deck.

The tower's observation platform, reached by a 110-step spiral staircase, reopened to the public after 1990. Since then, the Kreuzkirche's trombone choir has played Christmas carols from the tower every Christmas Eve from 10 pm, a roughly one-hour tradition heard across the town and as far as Berlin.