The unbelievably opulent home built for an infamous newspaperman.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A small but immensely extravagant palace built by the "Night King."

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The beloved dining spot stands at the cross-section of Hollywood and the Old West.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

This picturesque abandoned home is rumored to be a spite house.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Though technically an illegal structure, this eclectic DIY apartment complex is beloved by its residents.

Malibu's first beach home features an astonishing trove of ceramic tiles.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The stunning interior of this Gothic church is covered in ornate gold details.

Flamboyant architecture from the turn of 20th century.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

The second largest in the world, this massive underground void has its own subway.

From under the bed of one of the co-founders, this server helped launch the notorious file-sharing website.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A complicated contraption for telling time by the moon.

This junkyard made over as a theme park is the "Most Alaskan place in Alaska."