Three-hour guided tours by bike that start at the Danish Architecture Center in Christianshavn and take in many of the must-see sights, as well as some off-the-beaten-path neighborhoods. Historic Copenhagen (1:30 pm) and Copenhagen by Night (8 pm) tours are offered daily April-September. 250 DKK. Other special-interest tours, such as architecture and Hans Christian Andersen theme tours, are available for groups. All tours must be booked in advance. Strandgade 27B, Christianshavn, Copenhagen. Phone 3323-9490. http://www.citysafari.dk.