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Museum dedicated to the life and works of seminal philosopher Baruch Spinoza.
© OpenStreetMap contributors
Former airplane hangar at the Katwijk Airfield, which is converted to a theatre.
Katwijk-Leiden steam train
One of the Heritage railways of the Netherlands, the Katwijk-Leiden steam train is a narrow-gauge railway around the Valkenburgse Meer. The line is being serviced with a steam tram. Aside from the railway, there is also the National Narrow-gauge Railway Museum located around the station.