Mystery Castle - frequently featured in online photo essays

Mystery Castle, built by Boyce Gulley between the 1930s and 1950s using found and recycled materials for his daughter, is an eccentric stone-and-recycled-material structure that later opened to the public as a local attraction. Located on the slopes of South Mountain, the castle is often included in online travel guides, photo essays, and short videos highlighting unusual architecture in Phoenix. It is run as a museum and receives attention from photographers and social media visitors.