//
Photo: Bouwe Brouwer, CC BY-SA 3.0 via Wikimedia Commons
The world's oldest still operational planetarium, from the late 18th century. It's also a cultural world heritage site.
The Royal Eise Eisinga Planetarium is an 18th-century orrery in Franeker, Friesland, Netherlands. It is currently a museum and open to the public. The orrery has been on the top 100 Dutch heritage sites list since 1990. In September 2023, it received the status of UNESCO World Heritage Site. It is the oldest working orrery in the world.
© OpenStreetMap contributors
Playing the role of the town museum, it houses historical exhibits, including one on Franeker university.