Hochbunker Heckeshorn, Military bunker in Steglitz-Zehlendorf, Germany

Hochbunker Heckeshorn is a six-story telecommunications bunker on the grounds of the former Reichsluftschutzschule in Heckeshorn, built in 1943 to plans by Eduard Jobst Siedler of the Technische Hochschule Berlin. Its outer walls and ceilings are made of reinforced concrete up to four meters thick.

Built in 1943, this bunker served as a command center for Berlin's air defense during World War II. It coordinated fighter aircraft operations across a large region during the city's heavy bombing campaigns.

The bunker reflects how Berlin transformed its military structures into places serving new purposes over time. Visitors can see how a wartime building became part of the city's healthcare infrastructure.

The bunker stands on the grounds of the former Reichsluftschutzschule in Heckeshorn, in Berlin's Steglitz-Zehlendorf district. It is a six-storey above-ground structure, not an underground complex, so visitors move through stacked floors rather than subterranean passages. Guided tours are the way to see the interior; the site is not freely walkable.

In 1985 the bunker was converted into an operating-theatre bunker and emergency hospital for 400 patients. Before that, from 1967, it served as the pathology and mortuary of the Heckeshorn lung clinic.