Oslo has a bit less street cred than Copenhagen, but it shares a strong Viking heritage, plus the inventive food, great shopping, and walkability of its slightly more famous neighbor to the south. History buffs will enjoy learning about the city’s Medieval past — anchored to the present by the wealth of architecture from that period — and nature-lovers can take full advantage of Oslo’s easy access to fjord-side hiking trails. Europeans are starting to realize that Oslo is the next It place, too: it’s currently the fastest-growing city on the continent.