The Inside-Out Diorama

Anyone who has walked through the American Museum of Natural History might have sensed something was wrong. Just go through its Hall of Gems and Minerals, or its Hall of South American Peoples, or its Hall of Pacific Peoples. At the end of each of these long rooms, which were only reached through other long rooms, you found nothing less than a dead end. In a way, the reason was by design: the master plan of this museum, founded in 1869 and first envisioned by Calvert Vaux and Jacob Wrey Mould in 1872, has never been fully realized. Much like the Metropolitan Museum of Art, the Brooklyn Museum, and other grand nineteenth-century American edifices, New York’s natural-history museum was laid out on a massive cross-in-square plan, which has only been partially built out over time.