Naturalis is a museum of natural history in Leiden. With over 40 million objects, Naturalis is in the top 5 of museums of natural history worldwide. The museum is made up of several halls, and the LiveScience hall even won a Bankgiro Loterij Museum price in 2020. The absolute crown jewel of Naturalis must be the T-rex Trix, in the Dinosaur hall. In short, definitely worth a visit.