The world's only museum devoted to the wonders of fluorescence.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A beautifully eclectic mix of architectural styles.

A curious collection dedicated to human and animal anatomy and pathology.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

One of the world's largest salt caves is filled with fragile salt sculptures, salt rivers, and huge salt megadomes.

Iranian tombstones shaped like male and female sexual organs.

Salt cured mummies continue to turn up in this Iranian mine.

Lived-in building, bedecked with an astonishing array of mirror mosaics.

The palace of the King of Kings, burned by Alexander the Great.

Volcanically heated hot springs.

An enormous, 30-story-deep hole in the middle of Guatemala City.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

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

Art school in the Amazon: Drugs, nature and sustainable agriculture.

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

Astronomical observatory above Lake Titicaca.

Museum dedicated to the sacred leaf of the Andes.

Bolivia's needle-like rock formations.

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

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

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

The clients of these mysterious hand-crafted funeral cars took their last ride in style.

What was once a unique system of urban elevators is turning into a mechanical ruin.