A submerged archeological park still holds the wonders of a Roman Sodom.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

On Japan's Tashirojima Island, cats are king.

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

An exquisite tunnel of cascading flowers.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

A part of the world's largest marsh seems to be growing bright red Martian grass.

A dangling church built over a Colombian gorge.

A canvas of crops grow from vibrant red soil in this terraced farmland.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This small group of sand dunes manages to pack in a strange rainbow of colors.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

This beautifully deceptive waterfall is something far different from what it appears to be.

This uninhabited volcanic island is the most remote in the world.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The underground hideout of a Japanese soldier for whom World War II ended in 1972.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.