The aptly named XS is one of the most over-the-top clubs in the world: the most expensive club ever built when it opened in 2008, it's also one of the top grossing clubs in the world. Look for a fabulous gold bas-relief entryway, gold-plated chandeliers, and gold-embossed crocodile VIP booths; they’re meant to make you feel as if you’ve arrived. On Sunday nights in the summer, Night Swim at XS is the place to be. Party in the pool, play a hand of blackjack at one of the outdoor tables, or rent one of 26 cabanas to take in the party more privately. Some of the best DJs in the business play here.