World's Largest Swimming Pool
It is more than 1,000 yards long, covers 20 acres, has a 115-foot deep end, and holds 66 million gallons of water.
The Guinness Book of Records has named the vast pool beside the sea in Chile as the biggest in the world.
But if you fancy splashing out on one of your own -- and you have the space to accommodate it -- then beware: this one took five years to build, cost nearly 1 billion, and the annual maintenance bill will be 2 million.
The man-made saltwater lagoon has been attracting huge crowds to the San Alfonso del Mar resort at Algarrobo, on Chile 's southern coast.
Chile's monster pool uses a computer-controlled suction and filtration system to keep fresh seawater in permanent circulation, drawing it in from the ocean at one end and pumping it out at the other.
The sun warms the water to 26c, nine degrees warmer than the adjoining sea.