Since 1980 the oddity of the New York Earth Room, the work of artist Walter De Maria, has been wooing the curious with something not easily found in the city: dirt (250 cu yd, or 280,000lb, of it, to be exact). Walking into the small space is a heady experience, as the scent will make you feel like you’ve entered a wet forest; the sight of such beautiful, pure earth in the midst of this crazy city is surprisingly moving.