This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This imposing modern citadel started out as a home renovation project.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Numerous impressive carvings are embedded in the trees lining this street in Marrakech.

Ancient temple is home to centuries of art and spiritual artifacts.

The once-dying town of Sheffield, Tasmania has reinvented itself as a village of painted wonders.

What happens when you cross a mayor and a painter?

Paris' linguistic guide to the international language of, yes, love.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

Open air sculptures by an eccentric and loin-clothed hermit.

The remains of an encyclopedic sculpture garden later used as an internment camp.

A massive yet whimsical statue pays homage to the art and joy of "flight."

This massive blockhead sculpture hides an entire library.

The world's second-largest sundial, made entirely out of stone.

This extraordinary geological oddity resembles human-made pavement.

Temples adorned with intricate, erotic sculptures make up one of the "seven wonders" of India.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

A Spanish forest is filled with mysterious stone carvings.

An underground city of salt.

A huge Megalithic chamber tomb located behind a cafe.

Week-long block party becomes a competition for the best decorated street.

Step back in time and witness the fall of Constantinople.

Relive a Polish uprising via an enormous, century-old cyclorama.