The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

This temple was constructed entirely by Roman soldiers.

Also known as "Robin Hood's tree," this tree became a famed location along Hadrian's Wall before it was cut down in an act of vandalism.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

This floating sculpture of ice is a poignant reminder of nature's power.

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.

The phone booths in this English town have distinctly milky hues.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

Five candy-colored villages on the Italian Riviera.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

This tiny chapel withstood a massive mudslide and flash flood.

The bomb-ravaged remains of of a colossal Neptune.

On the walking path from Monterosso to Vernazza, a small shrine dedicated to feline friends.

Perched above a grotto, this tribute to Mother Nature looks out into the ocean.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

Anatomical cabinet holds unexpected treasures.

The remains of a Dominican friary, once one of the largest of its kind in the United Kingdom.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

Inside this chapel, Victorian jailers took the separate system to new levels.

Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.