One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

A fascinating insight into daily life in the Eastern Bloc.

Some of the clearest water anywhere in the world.

Eat a meal surrounded by bomb fragments.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

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

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

A glacier pocked with ice caves and surrounded by rainforests.

One street divides a single town that stands in two U.S. states.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.