Sixt rent a car Aalborg recommends that you visit KUNSTEN Museum of Modern Art, which exhibits Danish as well as international artist. Also noteworthy are the historical sites of Aalborg Kloster (Monastery), the under Gråbrødrekloster Museum, Budolfi church, Aalborghus Castle as well as Jens Bangs stone house. Additional attractions include the Utzon Center, Aalborg Symphony Orchestra, Aalborg Tower, Aalborg Zoo, Aalborg sea and maritime museum, Aalborg Defence and Garrison Museum, Lindholm Høje Viking Museum and Viking burial ground.