A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A controversial memorial at the place where Captain Cook met his violent end.

These ancient sacred grounds granted amnesty to those who managed to reach them.

This black shoreline is made up of exploded lava particles.

This dangerous-looking suspension bridge may have been too unstable to remain open.

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."

Singapore's landscaping project is home to 18 incredible Supertrees.

The largest tea plantation in Southeast Asia supplies gorgeous vistas alongside tea for the surrounding countries.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

This famous city eluded concrete detection until the early 2000's.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Mediterranean castle on a tiny Turkish island.

Tower with a double-helix spiral, adorned with letters of the Georgian alphabet.

Fortified homes of highland warriors that are still in use today.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

The hottest place on the planet.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

Over the dunes of the Empty Quarter, the mysterious music of the desert.

This remote British Imperial telegraph relay outpost drove men insane.

A faithful reproduction of Al-Jazari's enormous water clock.

Whitewashed mosque contains the world's largest carpet.