ARIZONAPhotos: What's the story of Phoenix's Mystery CastleArizona RepublicNovember 19, 2021; Phoenix, Arizona; The Mystery Castle, at South Mountain Park built by Boyce Luther Gulley using recycled materials.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Birdcage with arm hangs in the chapel in The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Elizabeth Keyser takes photo in the chapel while touring The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Shoe left by a bride in the Chaple at The Mystery Castle at South Mountain Park.Megan Mendoza/The RepublicThe Mystery Castle, at South Mountain Park was built by Boyce Luther Gulley using recycled materials in Phoenix, seen on Nov. 19, 2021.Megan Mendoza/The RepublicJuan Ramon Gastelum Robles greeting visitors at The Mystery Castle, at South Mountain Park in Phoenix on Nov. 19, 2021.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Elizabeth Keyser, left, and Tia Cheshire touring The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Decorations in The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Decorations in The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; Decorations in The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; The Kitchen in The Mystery Castle, at South Mountain Park.Megan Mendoza/The RepublicThe wedding Chaple in The Mystery Castle on Nov. 19, 2021, at South Mountain Park built by Boyce Luther Gulley using recycled materials.Megan Mendoza/The RepublicNovember 19, 2021; Phoenix, Arizona; The Bar in The Mystery Castle, at South Mountain Park built by Boyce Luther Gulley using recycled materials.Megan Mendoza/The RepublicA room inside The Mystery Castle on Nov. 19, 2021, at South Mountain Park built by Boyce Luther Gulley using recycled materials.Megan Mendoza/The RepublicPortraits of Mary Lou Gulley, left, her mother, Frances Bradford Gulley, middle, and her father, builder of The Mystery Castle, Boyce Luther Gulley, right, hang in the Mystery Castle at South Mountain Park on Nov. 19, 2021.Megan Mendoza/The Republic