50. Moorea Beach at Mandalay Bay Resort and Casino
Location: Las Vegas
Address: 3950 South Las Vegas Blvd.
Fully Nude? No
Where better in the U.S. to experience sanctioned nudity than Sin City, right? Mandalay Beach Resort and Casino houses Moorea Beach, a private, adults-only topless beach that offers poolside massage service, personalized attendants, and red beach chairs for everyone to sprawl out on while marveling at the...pool? Yeah, right.