The world's largest concentrated solar power plant.

The designated Jewish quarter in Fez dates back to the 15th century.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

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

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

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.

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

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

This eclectic architectural gem played witness to Zurich’s colonial past.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

One man's remarkable private collection of art from around the world.

The best place in the world to buy tinned fish.

The stunning interior of this Gothic church is covered in ornate gold details.

Elaborate tile work in this railway station tells the story of Portugal.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This concrete residential area doubles as an open-air gallery.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.