In the South American resort of San Alfonso del Mar in Chile, this artificial lagoon and swimming pool is eight hectares in size and contains an incredible 250,000 cubic meters of water. Acknowledged by Guinness World Records as being the world's largest swimming pool, the lagoon trounces all other record holders in the category, including the Orthlieb pool in Casablanca, Morocco, itself a huge 150 meters by 100 meters the San Alfonso pool is 1km in length.

During World War II the Army Corps of Engineers needed to hide the Lockheed Burbank Aircraft Plant to protect it from a Japanese air attack. They covered it with camouflage netting and trompe l’oeil to make it look like a rural subdivision from the air.

BEFORE!!!

Bryan Berg broke the Guinness World Record for the World's Tallest House of Cards in 1992 at the age of seventeen, with a tower fourteen feet, six inches tall. His latest record-holding structure in the category is over twenty-five feet tall. In 2004, Guinness created a new record category for the World's Largest House of Cards to recognize a project Berg built for Walt Disney World--a replica of Cinderella's Castle. He continues to hold both records.