The National Building Museum could use a jazzier name (Architecturama?) and their new exhibit, “House of Cars: Innovation and the Parking Garage” (October 17-July 11), takes on a generally less-than-scintillating subject. But the curators may have a point: this overlooked and much maligned practical urban necessity deserves a spot on the exhibition roster. For, as the press release states, “In a world without parking garages, parking lots would sprawl across our cities.” And that would be yucky.