21 of the world’s sexiest rooftop pools [PICS]

Marina Bay Sands

In Singapore. 57 floors up, this 500 foot long pool is not for the faint of heart. Photo by williamcho

Hotel Joule

In Dallas. Part of the pool juts out from the building with only a thick pane of glass between swimmers and the city ten floors below. Photo by the urban fabric

Thompson Toronto Hotel

Opened in June 2010, the heated infinity pool is on the 16th floor and overlooks downtown Toronto. Photo by Thompson Hotels

Harbour Plaza Hotel

In Hong Kong. Glass-walled pool with views of downtown Hong Kong and the distant hills. Photo by PVCG

Old Sydney Holiday Inn

Could there be better views of Sydney? It seems unlikely as this pool looks onto the city spanning from the Harbour Bridge to the Opera House. Photo by Starr Public Relations.

Colonnade Boston Hotel

The only rooftop pool in Boston, the Colonnade's is 11 stories up and non-hotel guests are welcome during the week. Photo by colonnade

Vine Hotel

In Funchal, Portugal. This heated pool gives 360 degree views of Madeira Island. Photo by Vine Hotel

Standard Hotel

In Los Angeles. Astroturf lawn, panoramic views of downtown, vibrating waterbed pods, a fireplace, dance floor and plenty of lounge chairs make this a place to see and be seen in LA. Photo by skampy

Grand Hotel Central

In Barcelona. The infinity pool gives great views of Barcelona's famous Gothic District. Photo by Grand Hotel Barcelona

Gansevoort Pool

In New York City. In Manhattan's trendy Meatpacking District, this pool is open year round and has underwater music and lights. Photo by Gansevoort.

Hotel Udai Kothi

In Udaipur, India. Dine in the alcoves poolside or enjoy the view from the water over the palaces of old town Udaipur. Photo by mathias

Intercontinental Hotel

In Hong Kong. The infinity hot tubs of the spa make it seem as though you're taking a dip in the harbor. Photo by InterContinentalHongKong

SLS Hotel

In Beverly Hills. Sophistication and glamour surround you at this 6th floor hotspot between Beverly Hills and Los Angeles. If you get tired of swimming, you can relax in one of the poolside cabanas. Photo by Florian SEROUSSI

Fasano Hotel

In Rio de Janeiro. Relax and enjoy the full view of Ipanema beach 8 floors down. Keep an eye out for celebrities as well; Yoko Ono, Calvin Klein, and Madonna stay at the Fasano when they're in Rio. Photo by LyDzzz

Club 50 Viceroy

In Miami. 50 stories up, this club doesn't encourage swimming in the roof pool, though after a few cocktails it will seem pretty tempting. If you feel desperate for a swim, check out the 50-person hot tub in the Viceroy Hotel spa. Photo by Viceroy Hotels.

Fullerton Bay Hotel

In Singapore. With a great view of the Marina Sands casino and the Singapore River, the Fullerton Bay Hotel infinity pool is over 75 feet long. Photo by williamcho

Thompson LES

Stills of Andy Warhol are featured on the bottom of this pool in New York's Lower East Side. Photo by Thompson Hotels

Sky Bar

In Kuala Lampur. Snuggle up in a private booth or dance poolside with views of the Petronas Towers, but don't jump in - it's not for swimming. Photo by Stuck in Customs