7. Barcelona, Spain
Spain’s second largest city deserves two visits, one before you have kids and one with the kids in tow. There are so many things to see and do in this colorful city that is a mix of modern design and old-world charm. Visitors sans-kids will spend hours wandering through the outdoor European markets, window shopping and strolling through ancient city walls and stone corridors. The nightlife is alive in this city and whether you are looking for a vintage concert hall or the rapid rhythms of flamenco, you will find it here. The city’s wild side comes out in the wee mornings as party-goers hit the clubs sometimes as late (or as early) as 3am. Sun-drenched beaches beckon visitors to their shores, to hike, jog or simply swim in the deep blue waters. As you wind your way through hidden squares, fountains, and palaces along the Mediterranean; it will become abundantly clear why you got here before you had kids.