Schieffelin Hall is a building from the American Old West in Tombstone, Arizona Territory, the largest standing adobe structure still existent in the United States southwest. There are other adobe structures, houses dating from 1000 in Taos and Santa Fe, New Mexico. It was built in 1881 by Albert Schieffelin, brother of Tombstone founder Ed Schieffelin, and William Harwood as a first class opera house, theater, recital hall, and a meeting place for Tombstone citizens.