Worlds largest swimming pool

If you like doing laps in the swimming pool, you might want to really think about it before diving into this one. 

San Alfonso del Mar in Algarrobo, Chile is home to the world’s largest swimming pool, according to the Guinness World Records. Set on an artificial lagoon, the crystal-clear pool crosses over almost 20 acres and is 140-feet deep—equivalent in size to 6,000 standard-sized pools. The pool includes Jacuzzi tubs, solar heating, water cascades and an aquarium that holds more than 42 different species of local sea life. It took five years to build, cost nearly $1billion and the annual maintenance bill will be $2million.