Former Viking stronghold Copenhagen is one of Europe's oldest cities. Stroll along Europe's longest pedestrian route, The Ströget, around substantial sections of the dynamic Danish capital. Skyscrapers are outlawed, keeping the city's progressive modern architecture on the same sightlines as its smorgasbord of charming canals, colourful terraced houses and impressive museums. An eclectic array of sights beckons, from funky hippy kingdom Christiana to splendid palaces. For a true taste of Copenhagen, guzzle cups of Glögg.