Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Its dark depths conceal millions of rare, delicate crystal formations.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Oaxaca's recently restored "forgotten Dominican convent."

According to the legend, this structure was built in a single night with the help of the devil.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

The only visible remains of this ancient Greek underground temple is its roof protruding from the earth.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

The oldest house in the capital of Silicon Valley.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A ruined Maya city that suffered a years-long case of mistaken identity.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

This Old West prison built into the side of a cliff was said to be inescapable.

A sapling of the legendary tree where conquistador Hernán Cortés sat and wept after an Aztec uprising.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

In the middle of a remote desert town is a surprisingly opulent hotel.

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

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

A somber monument commemorates the site of a Native American reservation marked by suffering.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Iconic red and white plaques show the creative names invented to navigate the city streets.

Hotel designed around a 16th century Mexican bullring.