A delicate Gothic church modeled after Sainte-Chapelle in Paris, Loretto was built in 1878 by the same French architects and Italian stonemasons who built St. Francis Cathedral. The chapel is known for the "Miraculous Staircase" that leads to the choir loft. Legend has it that the chapel was almost complete when it became obvious that there wasn't room to build a staircase to the choir loft. In answer to the prayers of the cathedral's nuns, a mysterious carpenter arrived on a donkey, built a 20-foot staircase—using only a square, a saw, and a tub of water to season the wood—and then disappeared as quickly as he came. Many of the faithful believed it was St. Joseph himself. The staircase contains two complete 360-degree turns with no central support; no nails were used in its construction. The chapel closes for services and special events. Adjoining the chapel are a small museum and gift shop.