Public guided tour
Between 1935 and 1945, the citadel housed the Army Gas Protection Laboratories (HGL), a facility of the Army Weapons Office. They were used to develop gas protection equipment and conduct research on new types of nerve agents—such as tabun, sarin, and soman—for military purposes.
Image gallery
zu Zeiten der Wehrmacht auf der Zitadelle
The tour of the citadel grounds focuses on this aspect of the citadel’s history, which is barely visible today and has been little researched to date.
Learn how the Wehrmacht used the citadel’s buildings and what is still known today about the Army Gas Protection Laboratories.
PUBLIC GUIDED TOURS at 12:00 p.m. daily
- Sun., July 26
- Sat., Sept. 5
- Sun., Oct. 11
- Sun., Nov. 15
No registration required
Tour fee: 4.50 (plus admission)
Duration: 60 min.
Meeting point: Gatehouse
IN GERMAN
