One of the last active volcanoes on the Eastern seaboard.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

The ghost town that ended up on Ebay.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

For roadside fast food, pull over at the giant orange.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

The lesser-known Alice sculpture of Central Park dedicated to the “godmother of American children.”

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

A classically inspired temple in Redwood City.

These six walrus head statues harken back to a time when this area wasn't far from the oceanfront.

One of the last remnants of the city's Chinese nightclub scene is now a dive bar selling killer mai tais.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

Hike deep into the woods to explore this Gilded Age masterpiece.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

A private home built to resemble the shape of a microscopic creature.

An vast warehouse of everyday treasures in Berkeley, CA.

Worker-owned cooperative and resource for those looking to lighten their ecological footprint.

Handmade treasures from around the world.

The home of aviation trailblazers, in a remote corner of the big city.

This 19th-century clock has been restored to help withstand the harsh environment of its seaside home.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

This scout retreat, still in use today, was the filming location for the original “Friday the 13th” film.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.