This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

This canyon is comprised of gorgeous waters and magnificent basalt columns.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

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.

The oldest hall in Iceland was written of in the Sagas and features a centuries-old escape tunnel.

Three columns of volcanic rock shoot out of the ocean.

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

These enlarged egg sculptures represent the native birds of eastern Iceland.

The most powerful waterfall in all of Europe.

A sulfuric martian landscape that looks far better than it smells.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This black church sits alone among a field of lava rock.

A fantastic reconstruction of a 10th-century Viking longhouse.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

Bell tower juts out from a village buried under a lake.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

A macabre anatomy museum tucked within an old Italian hospital.

This Native American settlement dates back to the Pueblo II period.

The remnants of a creative early method of wildfire prevention.