San Alfonso del Mar, a resort in Chile, boasts world's largest pool. It's filled with 66 million gallons of filtered seawater, and is over 3,300 feet in length. Forget doing laps, people kayak on this pool.
Each Bird's Nest Villa at the Keemala Resort in Thailand comes with its own private infinity pool, which hangs high above the jungle.
Learn more about Keemala here.
The world's "largest rooftop infinity pool" is at the Marina Bay Sands Resort in Singapore. Overlooking the Singapore skyline, it sits on the 57th floor, but unfortunately is only open to hotel guests.
Explore Marina Bay Sands here.
Budapest is known as the "Spa City," as 118 natural thermal springs feed baths around town. The Gellert Baths opened their doors in 1918 and continue to soothe bathers from around the world with mineral-rich waters amid historical architecture.
Visit the Gellert Baths here.
The Astoria Pool is the largest public pool in New York City, and admission is free. It's extremely popular on hot summer days, and attracts thousands of city dwellers looking to cool off while soaking up views of the Robert F. Kennedy Bridge.
Visit the Astoria Pool here.
The UFO-shaped pools at Aqua Dome in Austria are designed to give swimmers a feeling of weightlessness.
Learn more about Aqua Dome here.
The Red Pool at the Library in Koh Samui, Thailand, is tiled in a mosaic of red, orange, and yellow, which creates its signature bloody hue. It may look alarming at first glance, but the colors provide a memorable contrast to the beach and ocean just beyond.
Visit The Library here.
The rooftop pool at the Joule Hotel in Dallas is only for those without a fear of heights, as it juts out over the edge of the hotel, providing vertigo-inducing views of downtown streets.
Visit the Joule Hotel Dallas here.
Swim above the clouds at the pool at Villa Honegg, a boutique hotel in the Swiss Alps. At an altitude of 3,000 feet above sea level, bathers can soak up the heated water as well as views of Lake Lucerne, snowy mountaintops, and the valley below.
Learn more about Villa Honegg here.
The semi-private pools at Sun Rocks Boutique Hotel in Santorini embody the iconic white and blue palate of this picturesque Greek island. With secluded caverns for swimming and views of the caldera below, this is an enviable swimming experience.
Visit Sunrocks here.
The two-tiered infinity pool at the Hanging Gardens of Bali is no stranger to accolades — it was named the world's best swimming pool by Conde Nast Traveller and TripAdvisor. The pool is suspended over a dense rainforest below.
Learn more about the Hanging Gardens of Bali here.
The pool at the Westin Turtle Bay Resort and Spa in Mauritius surrounds the idyllic resort and overlooks Turtle Bay, a protected marine park. Palm trees adorn small islands throughout the pool, so you can stay cool and shaded during your swim.
Learn more about the Westin Turtle Bay Resort & Spa here.
The safari never ends at Sanctuary Swala, a luxury "tentalow" in Tanzania's Tarangire National Park. The pool is made to look like a natural watering hole, and you may glimpse giraffes, elephants, and other wildlife while taking a dip.
Explore Sanctuary Swala here.
Laucala Island Resort is a private island in Fiji. It already sounds like paradise, but the glass-walled pool set amongst the natural environment takes the tranquility up a notch.
Learn more about Laucala Island Resort here.
According to the Guinness Book of World Records, Y-40 or "The Deep Joy" is the deepest pool in the world at 131 feet. It's popular with divers, as it offers a year-round environment to hone their skills, with underwater caves and a well-like funnel to explore.
Discover Y-40 here.
Before being dethroned by Y-40, Nemo 33 in Brussels held the title of world's deepest pool. The 33-feet-deep pool is also used as a training ground for divers, with a series of underwater caves.
Discover Nemo 33 here.
Nestled under impressive red rock formations in southwest Utah, the pool at the Amangiri resort incorporates the natural landscape right into the swimming experience.
Learn more about Amangiri here.
The Aulani Disney Resort & Spa in Ko Olina, Hawaii, has a network of stunning pools, including one with an infinity edge overlooking the beach, a hot tub cave, a lazy river, a private snorkeling pool, and even Disney characters to swim with.
Visit the Aulani Disney Resort & Spa here.
Take a break from Ibiza's party scene in the bubbling infinity pool at Hacienda Na Xamena. The "Cascadas Suspendidas" pools overlook the rugged Mediterranean coastline and hang over the cliffside.
Learn more about Hacienda Na Xamena here.
The pool at the Hotel Belmond Caruso in Italy's Amalfi Coast seems to float above the clouds. You, in turn, can float against the backdrop of an 11th-century palace overlooking lemon and olive groves below.
Learn more about Belmond Hotel Caruso here.
The Adult Quiet Pool at the Four Seasons Resort Langkawi, Malaysia, is as scenic as it is relaxing, overlooking the white sand beach and a UNESCO Geopark beyond. Pool staff will also offer you a cool towel and fresh fruit every hour.
Learn more about the Four Seasons Langkawi here.
Never choose between the beach and the pool again at the Amirandes Grecotel Exclusive Resort in Crete, Greece. The massive pool is filled with seawater and opens right into the ocean.
Learn more about Amirandes Grecotel here.
The pool at the Grand Wailea Resort in Maui, Hawaii, is the envy of the island. There are actually multiple pools over six different levels, and they include slides, whitewater rapids, a rope swing, and a swim-up bar.
Visit the Grand Wailea Resort here.
The pool at the Golden Nugget Hotel in Las Vegas is only for the brave. It has a transparent tube-style water slide that goes through a shark tank.
Visit the Golden Nugget Las Vegas here.