Kaiserin-Augusta-Stift, Cultural heritage monument in Potsdam, Germany.

The Kaiserin-Augusta-Stift is a building complex in Potsdam featuring neo-Romanesque elements that brought multiple functions under one roof. It contained a dining hall, gymnasium, medical ward, chapel, and living quarters for its residents.

The institution was built between 1900 and 1902, providing a home for up to 80 orphaned girls from officers, clergy, and civil servants. After World War II, the site underwent a complete transformation when repurposed for entirely different uses.

The foundation behind the home was established in 1872 by Augusta of Saxe-Weimar-Eisenach, Grand Duchess of Saxe-Weimar and German Empress, to educate and school orphaned daughters of the nobility, officers, clergy and civil servants. The girls moved here from Charlottenburg in 1902. The finest room was the Patroness's Chamber, the Patronengemach.

The building can be viewed from the outside and displays its original architecture clearly despite modern reuse. Best views are available from the surrounding streets, which show the entire complex.

From 1945 to 1994, the Soviet secret service KGB operated its main headquarters for European operations from this building. This hidden history shows how the structure gained an entirely new significance after the war.