[TomSawyer]

Sounds like a south Florida venture, named Wannado City, that didn't make it. http://www.bizjournals.com/southflorida/blog/2010/11/where-w...

[Cogito]

This is mentioned in the article. One of the founders, who reportedly had the original idea, tried to start an American version.

Laresgoiti had sold his share to López in 2002 and moved to Florida, where he launched Wannado, a theme park similar to KidZania. It closed in 2011.

The article later mentions that a separate franchise operation is looking to open up to 16 kidzanias in the US soon.