The world's largest concentrated solar power plant.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

God's Saharan sandbox of wrath.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

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

A fortified city, home to a remaining population of five families

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

The other side is actually green.

Mosaics, storks, and brothels—this ancient city has it all.

One of the most spectacular canyons in the world.

Morocco's Argania trees are infested with nut-hungry goats.

This modernist tower was saved by a fraternity with a 500-year-old penchant for shooting at wooden parrots.

Along this stretch of beach in Denmark resides several massive bastions of energy.

This unique architectural wonder is home to luxury apartments.

Remnants of the Nazis' occupation of Denmark linger along the sand.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A natural wonder in south Denmark.

Six beautiful wooden giants are hidden around Copenhagen.

An art project designed to encourage people to explore and investigate their surroundings more closely