This ancient walled garden turns fog into food.

Known as the Royal Palace of the Euganean Hills, this often overlooked castle has been home for multiple noble families over the centuries.

This precariously perched fortress was once ruled by a crow-worshipping baron.

A Roman temple perched over an Italian town, forgotten several times over.

An omelette made with over 1,000 eggs may have been prepared when Holy Roman Emperor Charles V visited this monastery.

This massive rock balanced for thousands of years being tossed here during a volcanic eruption.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

An intact, still operating pharmacy from the 18th-century filled with numerous artifacts and paintings.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

This caldera was once associated with the Etruscan god of the underworld.

These artificial caves crafted by ancient Romans were elaborate fish farms for moray eels.

A submerged archeological park still holds the wonders of a Roman Sodom.

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

This small, unassuming street is now a canvas for color and creativity.

A grand entrance to one of the world's smallest Chinatowns.

This spectacular track has run continuously since 1882.

An autonomous community living in the southern Negev desert.

This subterranean spot might be the epitome of Japan's baroque, retro coffee houses.

One of the oldest and largest castles in the world.

Giant cauldrons overflow with Uzbekistan's favorite rice dish at this cavernous dining hall.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.