This stunning mass of ice spans 121 square miles and is still growing.

A Prada store in the West Texas desert that is never open for business.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The marshy karst plain has reclaimed this beautiful 17th-century church.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Once the most densely populated place in the world, this island is now a ghost town.

Former island in the Aral Sea used to be a top-secret Russian bio-weapons facility.

A once extravagant mansion, now reduced to ruin.

At high tide this strange footbridge appears to have no purpose whatsoever.

British Empire's last territorial expansion, claimed by four countries.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

Fire meets ice at the southernmost volcano on Earth.

Natural time capsule containing an alien ecosystem.

French scientists make up the majority of the few humans to occupy this remote island in the extreme southern Indian Ocean.

Geometry and mystery come together in an epic show of octagonal masonry.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

This half-finished "city of toys" was almost Italy's own Las Vegas.

The world's most active stratovolcano is almost always erupting.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.