Centennial Park, Atlanta, Georgia, US. I lived here 4 yrs as a kid. Awesome location. The Olympics, underground, coca cola factory, the Braves, Six Flags, all right there! And the more recent addition, the aquarium is pretty cool too.
Tulsa, Oklahoma: Centennial Park. This pretty waterway is technically a channel to the park's detention pond then on through the underground channel leading to the Arkansas River. My husband, Mark, was a member of the design team.