This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

This historic, one-acre island is the only legal place to camp in the city of Richmond.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

A small Richmond island dotted with the remnants of hundreds of years of history.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

In a busy Oaxaca market, a nearly century-old drinks stand still serves family recipes from giant clay pots.

This beautiful and unmissable little museum is full of fascinating artifacts from Mesoamerica's great civilizations.

A quirky and charming restaurant founded by artists.

Frida Kahlo's childhood home, now a museum of her life and works.

The "world's smallest volcano" has been used to store meals and dispose of dead bodies.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

This cluttered cantina is famed for its cheese-spiked, raisin-flavored liqueur.

A warm desert spring holds one of the rarest species on earth.

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

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.