Adventuredome

The Adventuredome at Circus Circus is one of the largest indoor theme parks in the country, packed beneath a giant climate-controlled pink dome at the north end of the Strip. Thrill-seekers can ride coasters like the double-looping Canyon Blaster and the wild El Loco, while families enjoy gentler midway rides, carnival games and mini golf.

Because it's fully indoors, it's a brilliant escape from the desert heat or a rare rainy day. Entry is free; you either pay per ride or buy an all-day wristband, which is better value if you plan to ride plenty. Check current pricing online.