Mystery Castle

Mystery Castle was built between 1930 and 1945 by Boyce G. Gulley using stone, concrete, and salvaged materials to create a multi-room structure in the foothills of South Mountain. Gulley constructed the building for his daughter and mother, and the site is known for its eclectic use of found materials. The property operates as a museum and offers guided tours on limited days and by appointment, making interior access intermittent and sometimes hard to find for casual visitors.