This trio of Dominican cave lakes comprise a colorful biosphere of natural life.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A historic presidential getaway on the continental United States' southernmost island.

The museum chronicling a treasure hunter's dream, fulfilled.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

"We Seceded Where Others Failed."

Massive galleon from a box-office bomb docked in Genoa.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

A two thousand year old brothel uncovered in Northern Greece.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Where commuters walk through remnants of an ancient Greek necropolis.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

Hindu temple of the dead home to hundreds of long-tailed macaques.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

This sacred cave temple is home to thousands of bats and according to legend, a giant snake king.

The golden Buddha statue at the Wat Muang Monastery is the tallest in Thailand, and the ninth-tallest in the world.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.