Funded by Gustavus Adolphus, the Gustavianum (c.1620), opposite the cathedral, is the former main building of Uppsala University. 

It contains the university's cultural history collections; Nordic antiquities; Egyptian antiquities; and an Anatomical Theatre, built on the roof in the 1660s. Permanent exhibitions include Viking relics, such as priceless jewelry, medals, and swords; the history of Uppsala University; and Egyptian mummies. 

Temporary exhibitions round out the museum's offerings. The spectacular University Art Collection in the main building is also well worth exploring.