This curious, round temple is the oldest still-standing marble building in Rome.

The mystic whose incorrupt corpse still attracts the faithful.

The final resting place of the poets Shelley and Keats.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Thousands of fossilized footprints speckle this Bolivian national park.

Mountain of unimaginable riches that bankrolled the Spanish Empire, complete with its own underworld god.

An ancient Incan convent on Lake Titicaca's Island of the Moon.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

Astronomical observatory above Lake Titicaca.

This red lake 4,000 meters above sea level is home to rare flamingos.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

Bolivia's needle-like rock formations.

A valley of unique erosion patterns lends to a view like nothing on Earth.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

A seemingly endless landscape of pure salt stretches far across Bolivia.

FIFA deemed this isolated field one of the most remarkable places to play the sport.

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

On a remote island, legend has it that a fiddler and his wife were turned to stone.

A secret door leads to this cozy dive that sells only “milk.”

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.