Then he and Fido could have dreamed of the Ritz as they rested their tootsies back home, just as the sight of my ill-gotten Argentinean laundry bag has me fantasizing about dancing the tango at 2 a.m. in the grand ballroom of the Alvear Palace.

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About 55% of Tango users are in the U.S. Korea is the second-largest market, with 2 million users.

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"The tango is about passion, sentiment and love, " says Lombardi.

BBC: World Tango Festival