The World’s Largest Parks Mysteries Revealed. – From South Florida’s Favorite Indoor Activity and Fun Center Looking for Some Fun Indoor Kids Activities in South Florida, Broward County or Palm Beach County Visit Us!! There are over 700 amusement parks in the world. With some as magnificent as a mountainside, and as big as 700000 square feet these wonder parks have some pretty fascinating mysteries behind them. Here are a few quick stories to perk your fancy. Tropical Islands Resort is a water park that is located in Krausnick, Germany and is over 710,000 square feet of tropical fun and excitement. As the world’s largest single hall without supporting pillars in this park is equipped with its own indoor hot air balloon this could possibly one of the world’s largest parks of its kind. If you enjoy swimming this is a must stay. There’s a Tropical sea, lagoon, water slides, a kid’s pool, and a shopping boulevard!