This rooftop watering hole — the first beer garden in Mexico City — is a rarity in a town that is surprisingly lacking in al fresco dining. The bar, which specializes in German staples like warm salted pretzels and bratwurst, is outfitted with wooden Oktoberfest-style benches and potted plants. Draft and bottled beers hail from all corners of the world, but the affable bartenders can also whip up a potent cocktail should the need, or desire, arise.