Made famous by "Star Wars," these troglodyte homes face an uncertain future.

The largest and best-preserved Roman amphitheater in Africa was designed to seat 35,000 people.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

Stonehenge has nothing on Castlerigg’s views.

An impressive Neolithic henge with banks nearly 10 feet high.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

This one-time health resort was used by aristocrats around the world.

Traditional 11th-century outdoor tannery.

The other side is actually green.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

These roaring primates were considered a divine creature in the cosmology of the Maya.

This restored colonial house was once home to the botanist responsible for bringing avocados to the U.S.

These azure waters were thought to lead to the Mayan Underworld.

This small uninhabited island offers Galapagos-like biodiversity.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

Beatlemania is still going strong... at least in Kazakhstan.

This Soviet-era athletic and recreation facility is the highest ice skating rink in the world.