A scenic canyon with thick forests and historic ruins.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

One in a pair of subterranean caves created by an ancient eruption of Mount Fuji.

This wonderful rock formation constitutes the first geopark in Uruguay.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

Ancient temple is home to centuries of art and spiritual artifacts.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

Plenty of old carney magic still haunts this photogenic amusement park.

A traditional village rooted in the Joseon Dynasty.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

A crumbling ghost town with prime views of the dam that doomed it.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

For nearly 2,000 years this church has been waging war on local snakes by importing cats.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

An ancient necropolis of magnificent tombs.

China's very own Atlantis is an ornate dynastic city resting at the bottom of a lake.

This short pedestrian span is also known as the "Fairy Walking Bridge" because it looks almost magical.

Iran's colorful terraces are a rare geological masterpiece.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

This ancient fortress in Iran was once the oldest and largest treasury in the world.

Putrefaction plateaus in Iran, where the dead were sent for decontamination before going to their final resting place.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This terrifying glass bridge on the side of a mountain cracks as you step on it.