It sure seems like a completed structure at first glance. But look closer. Specifically, look at the piles of stone blocks stacked on top of the columns.
Those blocks were hauled up there during construction—around the turn of the 20th century. They were supposed to be carved into sculptures representing "Music", "Architecture", "Painting" and, ironically, "Sculpture". Instead, the stone has sat there for 110 years, through two major renovations, un-carved and largely ignored.
Via Amy Vernon
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.