13 and 14 September
Open Monuments Days in Oegstgeest

OSGER is the Open Monuments Weekend in Oegstgeest.
Come to the Open Monuments Days in Oegstgeest on September 13 and 14!
Discover the rich history and stunning architecture of Oegstgeest during this annual event. Visit historic buildings that are usually closed to the public, enjoy guided tours, learn about the region’s heritage, and take part in unique activities for all ages. Don’t miss this opportunity to experience Oegstgeest in a special way!
When
- Saturday the 13th of september 2025 from 10:00 to 17:00
- Sunday the 14th of september 2025 from 11:00 to 17:00