The World's Largest Fountain

On our way home yesterday we were driving along and noticed a huge fountain in the distance. We couldn't figure out what it was but when I pulled out the map I saw "World's Tallest Fountain" on it. We knew Fountain Hills, a suburb of Phoenix/Scottsdale had a large fountain but we didn't know it was that large; so we pulled the car over and stopped to see it. The fountain runs for 15 minutes on the hour and we caught one of the shows. The fountain reportedly gets as tall as 500 feet in the air.