The document summarizes the story of the Loretto Chapel in Santa Fe, New Mexico and the mysterious staircase constructed there in the 19th century. When the chapel was finished, the nuns discovered they had no way to access the second level. After 9 days of prayer, a carpenter appeared and built the staircase without any nails or supports in just one day. The staircase remains standing without explanation and the carpenter then disappeared, fueling rumors he was Saint Joseph answering their prayers. The staircase is now a site of pilgrimage due to its three mysteries: the identity of the carpenter, how it remains standing without supports, and where the unusual wood came from.