Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

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 large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

Preserved "bog person" that is over 2,000 years old.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

The ruins of Scottish sea salt production.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

A bronze tribute to the wildly popular video game from the '90s.

This monument depicts a harrowing event involving an escaped polar bear.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This sculpture encompasses the emotion of rail travel.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Theme park featuring miniature replicas of European monuments.

Metro station with a claim to rock n' roll fame.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.