Mandarin Oriental is best known as a luxury business traveler's brand, and the Vegas outpost certainly lives up to that reputation. The rooms can be a little small, but are decorated in haute-Asian extravagance, with Frette robes, sumptuous linens, and elegant artwork, as well as the kinds of technological flourishes appreciated by those here to do business. Wellness is also a priority here, and free yoga classes are held daily at the top-of-the-line spa, which also offers a hammam, laconium, and Chinese foot treatments. Chef Pierre Gagnaire's award-winning fusion restaurant Twist is on-site, and guests have priority in reservations.