Zagreb City Museum or The Museum of The City of Zagreb was established in 1907 by the Association of the Brethren of the Croatian Dragon. It is housed in a restored monumental complex (Popov Toranj, the Observatory, Zakmardi Granary) of the former Convent of the Poor Clares of 1650. The Museum recounts the cultural, artistic, economic and political history of the city spanning from Roman finds to the modern period. The holdings comprise 75,000 items arranged systematically into collections of artistic and mundane objects characteristic of the city and its history.

The Museum of Ivan Mestrovic is located in the actual house where the renowned Croatian sculptor lived and worked. He bequeathed all his works to the nation. As well as displaying the works of art, the museums provides insight into the life style of the great artist.

The Croatian Museum of Naive Art is the first museum of "naïve art" in the world. It contains almost 1500 works, including paintings and drawings. The actual term "naïve art" appeared in the 20th century and has been applied to amateur artists, who try to express themselves with the help of various methods and materials, and whose vision has not been determined by the history of art.

The Archaeological Museum of Zagreb relates history from the Roman period and some anterior periods through artifacts and documents. Among the exhibits there are also skeletons of animal species from different eras. The museum has a large library that recounts the history of Croatia preserved in books and other related documents. The most important collection of the museum, however, is that of Egypt.

Strossmayer's Old Masters Gallery is one of the key art galleries in Zagreb. It displays the works of European painters from the 14th through to the 19th century. The gallery has six Italian halls, three dedicated to north European artists, and ten holding French collections. It also features some of the local artists, like Schiavoni.

The Ethnographic Museum in Zagreb lives up to its name as it relates the ethnographic history of Croatia presented in costumes, local ornaments, musical and other instruments specific of this country. In a way, the museum acts as a keeper of national traditions, as well as educates foreigners about Croatian culture. It holds vast collections of photos, documents, and books related to the subject.

The Mimara Museum is named in honor of the couple, who donated their entire art collection to the museum. The collection contains different art pieces and artifacts. It features two big sub-collections - the Old Civilizations Collection and the Glass Collection - both including artifacts from ancient Egypt.