Green Door   

Even in an anything-goes town like Las Vegas, there are places that are too wild for the tourist brochures. The Green Door is the citys most celebrated social spot, which is a polite euphemism for sex club. Opened in 1998, the 18,000 square foot club is open to whatever behavior turns you on, with as many partners as you can handle, as long as youre over 18, the hookups are consensual and no money is exchanged. To help the mood along, there are group beds and showers, unisex bathrooms and special spaces sporting themes from a dungeon to a doctors office. Other amenities include pool tables, Internet booths and a juice bar, but if youre only there for a V-8 and a game of 8-ball, youre in the wrong place. David Hofstede