For a spine-tingling thrill: Shark Reef
With a capacity of 1,300,000 gallons, the Shark Reef at Mandalay Bay is more than just a really big fish tank—it’s one of the largest in North America. Enter the glass-enclosed tunnel while sharks, rays and other sea creatures swim by, or venture to the touch pool, where you can pet the little critters for yourself. Mandalay Bay, 3950 S Las Vegas Blvd.