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

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

This dizzying span over the ancient Algerian city was once the highest suspension bridge in the world.

A community gathering place that once housed half-ton tanks and the World's Fair.

A museum dedicated to the history and exploration of both popular music and science fiction.

This working class sculpture pounds his hammer all the livelong day.

A wall of chewing gum moonlights as collective art.