The Loretto Chapel in Santa Fe, New Mexico, USA is a former Roman Catholic church that is now used as a museum and wedding chapel. It is known for its unusual helix-shaped spiral staircase . The name and origin of the builder have still not been verified. The Sisters of Loretto credited St. Joseph with its construction, at the time.
It has been the subject of legend, and the circumstances surrounding its construction and its builder were considered miraculous by the Sisters of Loretto.