Former Viking stronghold Copenhagen is one of Europe’s oldest cities. Stroll substantial sections of the dynamic Danish capital along Europe’s longest pedestrian route, The Ströget. Skyscrapers are outlawed, keeping the city’s progressive modern architecture on the same sightlines as its smorgasbord of charming canals, colorful row 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.