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Dueling Architects Photos

Round one: Matthew Grzywinski says he hasn't built an architectural model in more than a decade. But here he's forced to sketch out a plan for a massive, floating entertainment center.

Information is scarce, but the MCs have told architects to pretend it's the year 2056. They are to assume much of urban America is under water and to model a structure that will float above it.

(Photo: CBS)