This vast masterpiece of Moroccan architecture spreads across 20 acres.

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

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

One of the most spectacular canyons in the world.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

Founded as a refugee camp, now a popular tourist spot.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

The arch marks the beginning of the road for northbound travelers.

The tombstone epitaph of Millicent Milroy commemorates her "marriage" to King Edward VIII, Duke of Windsor.

This mid-19th century chapel is a tiny treasure for weary travelers.

The world’s oldest baseball field had to fight to earn its record.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

The first transatlantic wireless signal was received at this 17th-century fort.

Known as "Toronto's Flatiron."

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Watch bison, elk, and other wild animals up close at this national park.

Webcam that broadcast the hatching of Bald Eagles to millions of viewers.