Entrance fee is 30 kuna or approximately 5 dollars. Working time is till 8 pm. Lots of exhibits, very interesting. Located in the old upper part of the Zagreb, near St. Mark church. Recommended.

One of the best Museum for losing your spare time and enjoy amazing exhibits definitely go see it if you are in Zagreb

The Croatian Natural History Museum (Croatian: Hrvatski prirodoslovni muzej) is the oldest and biggest natural history museum and the main body for natural history research, preservation and collection in Croatia. Located on Dimitrije Demeter Street in Gornji Grad, one of the oldest neighbourhoods of the Croatian capital Zagreb, it owns one of the biggest museum collections in Croatia, with over 2 million artefacts, including over 1.1 million animal specimens. It was founded in 1846 as the "National Museum". The National Museum was later split up into five museums, three of which were in 1986 merged as departments of the newly named Croatian Natural History Museum. The museum contains a large scientific library open to the public, and publishes the first Croatian natural history scientific journal, Natura Croatica.