Viking Ship Museum (Vikingeskibsmuseet)

The main attraction is five Viking ships excavated at Skuldelev. Exhibits explain how Vikings lived and worked, with a special focus on how they built their ships. A workshop demonstrates how the ships are restored.

Roskilde Cathedral

By far the most impressive church in Scandinavia. Dubbed “Denmark’s Westminster Abbey,” Roskilde Cathedral dates from the 1100s and is the burial place for the royal family; 40 kings and queens of Denmark are buried here. The church itself is enormous and beautifully decorated.