Zagreb's museums hold more than 3.6 million exhibits in more than thirty collections, from public and church museums to private collections and galleries.

The Archaeological Museum in Zagreb is located at Zrinjevac Street 19 and preserves almost 400,000 artifacts acquired from various sources in the centuries.

Of the art museums the most significant is the Museum of Arts and Crafts (Trg Republike Hrvatske 10), with collections of historical furniture and furniture, and today the number of artifacts is the richest museum in Croatia. Historical paintings and sculptures from the 14th to the 19th centuries can be seen in Strossmayer's Gallery of Old Masters and Mimara Museum. The Modern Gallery (Hebrangova 1) is an art collection of Croatian painters and sculptors of the 19th and 20th centuries. From other art museums, there is the Atelier of Ivan Meštrović (Venetian 8) with sculptures, drawings and lithographs of the most significant Croatian artist of the 20th century. Then the Croatian Museum of Naïve Art, as well as the Museum of Contemporary Art in New Zagreb.

There are two rich historical museums in Zagreb. The Zagreb City Museum (Opatička 20) and the Croatian History Museum in Vojkovic Palace (Matoševa 9).

Of other museums, the Croatian Museum of Natural History, the Technical Museum and the Ethnographic Museum are significant.