Mark major milestones in the perfect destination, from Nashville to Botswana. Getty Is there any day more existentially dreadful than a birthday? The ultimate memento mori moment of each year, it's the watermark we use to measure ourselves against the achievements of others (a reminder that Mary Shelley wrote Frankenstein at a precocious 19). Through horoscopes, it's the day that grants our personalities cosmic significance. And somehow, out of all the edicts of Victorian social etiquette, it remains becoming of a lady to never tell her age. But where's the fun in that? You have 364 other days of the year to cultivate your mystique and distinction—your birthday is a naturally ripe time to finally make all your wishes come true, and that includes being able to pack your bags and head somewhere new, especially when it comes to a milestone birthday. Perhaps your young one is having their first double-digit birthday, or maybe you're finally able to leave the fake ID behind and order your “first” drink.…