Denmark's capital is also its easternmost city. Originally founded as a Viking settlement in the 10th century on the eastern shores, Copenhagen quickly developed as a center of attraction for people all around the region. The city is the financial and economic center of Denmark. Copenhagen is flecked with green open spaces, extensive cycling paths, world-class museums, beautiful promenades and virgin beaches. If history is your thing, then your itinerary should definitely include the Rosenborg Castle, Amalienborg, and the Christiansborg Palace. Nyhavn - a 17th-century waterfront promenade and an entertainment district is an unmissable site in the city.