Loretto spiral staircase

The "miraculous" spiral staircase refers to the Loretto Chapel spiral staircase in Sante Fe, New Mexico, built without any support or even nails, an which does full turns to reach 20 feet high to a choir loft. Its builder was an unknown visitor to the Chapel around 1880, who worked without pay and apparently used spruce wood not common to the area.

The account of this spiral staircase is analogous to the Epistles to the Hebrews, which is written in perfect, magnificent Greek by an unknown author. Today the spiral staircase is a marvel of carpentry that would exceedingly difficult to match even with the use of modern equipment, let alone with merely pegs and glue by a single carpenter in 1880.