Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

A chance to follow in the footsteps of the word's most legendary animator.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

One of the last functioning antique elevators in Chicago.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

The subtle science of a master molecular gastronomist.

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

Outside a market, beautiful murals pay tribute to fruit sellers and farmers, as well as a few legendary artists.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

An empty mine that some believe will suddenly be filled with fortune and treasures at the end of the world.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

An enormous image of Utah's salt flats made entirely from tape.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

Largest man-made excavation on earth!

A shady solar power system that couldn't hold up to the harsh desert conditions.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.