This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A sprawling collection of over 106,000 toys from around the world.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The "lovely red Vega" of the legendary record-settling pilot.

Washington's iconic carousel has a nice piece of Civil Rights history.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

When life gave this firefighter a forest fire, he made a rough-hewn sculpture park using a chainsaw.

The remains of a historic ranch house that witnessed the Civil War battle dubbed the “Gettysburg of the West.”

Deadly airliner crash preserved for those willing to climb and pay respects.

One street divides a single town that stands in two U.S. states.

Before Nixon, "watergate" meant canals.

The romance of early commercial flight still fills this Art Deco destination.

The farm toy capital of the world hosts a museum filled with toy tractors dating back to the late 1800s.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

A volcanic landmark located on an Ice age lake bed.

Experience a charming 1930's version of "infotainment."

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.