In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The largest stone moai on Rapa Nui.

This was once the center of the Birdman cult, and is now a World Heritage Site.

A volcanic crater that visitors can look inside.

The world's most remote airport.

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

Pivotal home of Nobel Prize winner Pablo Neruda.

The fighters and conspirators that won independence for Paraguay held secret meetings at this historic house.

This statue stands in honor of Antoine de Saint-Exupéry, the French author of 'The Little Prince' and an aviation hero.

Construction of this bridge was once described as an "act of violence" against a neighboring country.

This impressive coastal fortress was destroyed before it was finished.

Workers have collected salt here in a process virtually unchanged since the Middle Ages.

Piran’s oldest square is laden with history and a beautiful 18th-century reservoir.

This massive Trojan ursine was built to be a new tourist symbol for a small Swedish town.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

This fortress was built using the last surviving stones from the Lighthouse of Alexandria, one of the Seven Wonders of the Ancient World.

The longest fence in the world stretches over 3,000 miles to keep the dingoes out.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

An incredibly salty lake inside the crater of an extinct volcano.