A secret climbing tree hides along the side of a Costa Rican road.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A diorama of the Civil War, fought by cats.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The oldest continuously operating fish market in the United States.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The highway's southernmost spot is a beloved local attraction.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

An L.A. traffic island where the faces of locals have been carved into massive granite eggs.

The final resting place of a space program monolith, soon to be unveiled again to the public.

The narrowest house in America is seven feet of pure spite.

A former major munitions plant that has been converted into a sprawling art space.

An original apothecary from 1792.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.