Open Monument Day 2026
September 13, 2026
Theme: “NetzWERKE: Monuments & Infrastructure”
Open Monument Day takes place annually during the second week of September. It offers interested citizens the opportunity to explore the historic landscape of the state capital, Mainz, as part of a diverse program.
Open Sesame: Visitors Discover the Unknown
Every year, more than 5,000 historic sites across Germany open their doors for the country’s largest cultural event. Young and old, experts and laypeople, families and individuals alike gain access to interiors that are otherwise off-limits. Why not explore a few buildings yourself on Heritage Day? After all, every historic site is a true treasure trove of knowledge and holds its very own secrets.
Private monument owners, full-time and volunteer monument conservators, and associations all contribute to Heritage Day. The nationwide events are coordinated by the German Foundation for Monument Protection.
Program in Mainz
Several organizations in Mainz are also participating. You can expect to find out exactly what events are planned here starting in mid- to late August.
Further information
Contact Person
Address
Mr. Florian Schleifer
Historic Preservation Officer for Gonsenheim, Finthen, Hartenberg-Münchfeld (excluding SchUM), Hechtsheim, the industrial area, Laubenheim, the Lauteren district, and the area east of Rheinstraße (excluding City Hall), the banks of the Rhine up to Zollhafen, Mombach, and Weisenau
Zitadelle, Bau C
RoomRaum 0.32
Am 87er Denkmal
55131 Mainz
Postal address
55028 Mainz