A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

1887 era Russian Orthodox church in Minneapolis.

An unrealized Taoist palace left abandoned in a Houston suburb.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

The largest historic preservation organization in the United States.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

This otherworldly church spire reaches up toward the heavens.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

The world’s largest Masonic temple was saved by the White Stripes.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

A view-altering observatory at the University of Texas.

A cabinet of curious mathematical models and old calculators.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.