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

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

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

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

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

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

God's Saharan sandbox of wrath.

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.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

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

The other side is actually green.

One of the most spectacular canyons in the world.

Space-age minarets towering over Islamabad.

An enormous public square and parade ground built to celebrate Ghana's independence.

This Nigerian nature reserve is home to the longest canopy walkway in Africa.

The telescope that discovered Neptune.

An abandoned train station in Munich constructed for the 1972 Olympic games.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

A fearsome dragon clings to a corner of Munich's city hall.

Go surfing on this urban wave, "hacked" by local surfers.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.