The park, located in Suwon, South Korea, is dedicated to the memory of Sim Jae-duck. He was the former mayor of Suwon and had a life-long obsession with toilets, to the point where he founded the World Toilet Association, wrote a book called "Happy To Be With You, Toilet," and even build a house shaped like a toilet that is the centerpiece of this park.
The park opened earlier in the year, and also features a museum dedicated to toilets. It includes high-tech (and useable) toilets, toilet signs from around the world, an art gallery of art inspired by toilets and even poop-shaped souvenirs!
Check out the video below for more info