Three columns of volcanic rock shoot out of the ocean.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

A little-visited waterfall in an otherworldly landscape.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

A winding, blood-red tunnel of hardened lava navigable by foot.

An encyclopedic collection of mammal penises.

The most powerful waterfall in all of Europe.

This elegant arc of a waterfall marks a religious turning point.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

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

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

These Nubian pyramids are strange and unique, even by pyramid standards.

Crumbling pyramids and temple ruins stand within the shadow of this sacred butte.

Qatar's oldest market can trace its origins back more than a century.

A 19th century pearling and fishing village abandoned before Qatar's economic boom.

An abandoned fishing village in pre-oil Qatar.

A sixth-century Byzantine cistern hidden below a modern carpet store.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.