The Palace of Fine Arts is a monumental structure located in the Marina District of San Francisco, California.

The Tower of Jewels was a temporary structure built for the 1915 Panama-Pacific International Exposition.

The Integratron is a 38-foot high, 55-foot diameter, non-metallic structure designed by Ufologist and Contactee George Van Tassel.

Bishop Castle is an elaborate and intricate one-man project named after its constructor, Jim Bishop.

Lake Minatare Lighthouse is a renowned landmark located at Lake Minatare's north shore.

Joslyn Castle, also known as Lynhurst, is a magnificent example of Scottish Baronial architecture.

The House on the Rock is a complex of architecturally unique rooms, streets, gardens and shops designed by Alex Jordan Jr.

Kingfisher Tower is a prominent stone structure overlooking Otsego Lake.