After learning he had tuberculosis in the late 1920's, Boyce Luther Gulley left his wife and infant daughter in Seattle, Washington and relocated to Phoenix, Arizona. During the 1930's, he built a castle for his daughter Mary Lou and called it Mystery Castle.
Gulley built the castle with found recycled items and materials he collected over time. The structure is said to be held together by cement, mortar, calcium and goat milk. It features 18 rooms, including a chapel, a cantina, and a dungeon.
After his death in 1945, his family learned thru an attorney that the daughter had inherited the house. Mary Lou and her mother moved in, and in 1992 added electricity and plumbing to the house, which was eventually opened to the public.
