A geological bull's-eye visible from outer space.

This small group of sand dunes manages to pack in a strange rainbow of colors.

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

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

The other side is actually green.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

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

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

Rocky Atlantic beach home to a stunning stone arch.

One of the most spectacular canyons in the world.

A Moroccan getaway in the mountain range that plays the Himalayas' stunt double.

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

Welded sphere dropped from space.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The largest known meteorite on Earth was too big to move.

Tiny pyrophyllite spheres from 3 billion years ago.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

The world's largest pineapple building honors Bathurst's favorite fruit.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Massive stele returned to Ethiopia after 70 years in Rome.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

An Indonesian mosque styled after St. Basil's Cathedral.