Many kids who grow up to be architects get their start with Lego, but how do architects play with Lego when they're not kids any more? To find out, the Lego Store in New York's Flatiron District, in collaboration with Architizer, recently held an event. There, they teamed architects from BIG, SHoP, HWKN, and Bernheimer Architects with students from Manhattan's Urban Assembly School of Design and Construction to create a new New York out of monochrome Lego blocks, unbounded by pesky budgets and zoning laws.