Flames have been burning within this mountain for more than 2,500 years.

A marvel of Byzantine engineering under the streets of Istanbul.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The glacier tucked within a New Zealand rainforest.

This strange geological landscape erupts with sudden bursts of water.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

One of Chile's most active volcanoes is riddled with beautiful caves.

A 300-foot-long Cold War submarine floats in a Chilean River as a maritime museum.

Pivotal home of Nobel Prize winner Pablo Neruda.

This historic Chilean cemetery is the burial place of hundreds of European and American freethinkers and non-Catholics.

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

Come for the flowers, stay for the bats!