Open Monument Day in Altfriedland

The Open Monument Day 2026 will be celebrated throughout Germany on the second Sunday in September, specifically on September 13, 2026. The theme for the year is "NETWORKS: Monuments & Infrastructure," offering owners and enthusiasts the opportunity to present historic buildings, bridges, ships, power plants, schools, or government offices in a new light and to highlight the interconnectedness of monuments. In Altfriedland, the Long House, the Manor House of the Future, and the Monastery Church will be open for exploration on this day.