Like so many other American cities, Washington, D.C. has struggled to create what its former mayor called a “living downtown” with a distinct core of urban dwellers. But a new round of downtown residential construction is offering a chance at architectural revival, with the hope that a unique urban look will attract new residents. But for every great new building that goes up, it seems that four more uninspired, boxy concrete blobs rise as well. Are the city’s architects abandoning creativity in order to insure that their buildings have the requisite exercise rooms, rooftop pools, and other amenities supposedly demanded by today’s urban residents?