These unique toilets feature transparent glass covered in PDLC film.

A remarkably futuristic building sits in the oldest town in Louisiana.

The art deco colossus played a role in war and medicine aside from hosting the iconic Louisiana Hayride.

This quirky little private museum is home to more than a thousand stones, carved by nature, that resemble human faces.

America's oldest Italian restaurant is a San Francisco institution.

Some of the freshest vegetables in Seoul are grown in a subway station.

A free, public museum dedicated to the fascinating science of sight.

This sculpture may be the only known depiction of a man who helped finance the American Revolution and inadvertently created the dollar sign.

Guns that have been defending San Francisco since 1904.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

This print shop boasts one of the largest pinball arcades in San Francisco.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

An offbeat angle on the ocean viewed through an antiquated lens.

Need a hardcopy of the 50-title Code of Federal Regulations? This is the place.

A nostalgic bibliographic gem.

The walls of the iconic dome are hollow and have a secret stairway.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.