Hawaii’s largest cemetery rests inside an extinct volcano crater.

An historic, one-lane, pedestrian suspension bridge on Kauai.

A cannonball from Union forces battling John Hunt Morgan made this church a permanent home.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

A network of tunnels connecting Bosnia’s ‘ancient pyramids’—or maybe just an abandoned mine?

"We Seceded Where Others Failed."

The highway's southernmost spot is a beloved local attraction.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The ruins of this medieval tower are destined to crumble into the sea.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

A strange-looking 18th-century tower sits on a tiny islet just off Livorno.

The naturally mummified body of a peasant girl saint.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Fortified medieval tower house with lovely roof garden.

After World War II, this former concentration camp in Northern Italy became a refuge for those displaced by the war.

A masterpiece of modern architecture that caused quite a stir in Paris, recreated in Bologna half a century later.

A design by master architect Alvar Aalto in a small village in the Apennines near Bologna.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

This former studio belonging to a pioneer in photography stands in a picturesque landscape with unique rock formations.