12 and 13 September

Open Monument Days Leiden

Over 30 monumental buildings in the city centre are opening their doors. This year marks the 40th edition! Come by and let yourself be surprised by the stories of this special heritage.

Visit the many activities at the Ambachtsplein, participate in (children's) activities, take a guided tour, listen to nearly 20 choirs and musical performances, follow the walking route, or hop on a bike for the cycling route. In short: there is plenty to experience for young and old!

The free guide can be picked up in the week before the event at Stadhuis, Stadskantoor, libraries, bookstores, and the Tourist Information Office. Or download a copy here.

Want to explore more of the region? Check out the programme inĀ Voorschoten, Leiderdorp, and Zoeterwoude.

When

  • Saturday the 12th of september 2026 from 12:00 to 17:00
  • Sunday the 13th of september 2026 from 10:00 to 17:00
  • On Saturday, the City Hall is open from 10:00. Children's activities on both days from 12:00 to 16:00.