A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

Series of underground houses inhabited continuously for centuries.

"Drunken ship" sculpture memorializing the French poet in the city where he died.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

From the dishes to the art, this Michelin-starred restaurant orbits around one beloved French melon.

700 iron sculptures crammed into a Mediterranean park.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

The construction of a new church near Venosa was started in the 11th century, but never finished.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

This statue was a gift to commemorate the Thai monarch's first visit to a foreign land.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.