We've found the largest backyard swimming pool, and it's in Houston, Texas.

At 600,000 gallons, it looks pretty much the same as a waterpark. Except it's Mike Mobley's backyard!

He says it cost over $3 million dollars to build and even more just to maintain it. But I guess if you have that much money, why not hold a world record with it too?

The best thing about this is that he doesn't use it just for himself and his family. The whole town is invited to come relax! 

Check out pics of Mike's backyard oasis HERE and wish that one of YOUR neighbors would do something like this...