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

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

The United States Capitol's former columns still stand.

There once was a man named Lear / Who found limericks so dear / His final resting space / Is an unusual place / Most people don’t know he’s here.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The bomb-ravaged remains of of a colossal Neptune.

This small Milan street is filled with colorful homes and a rich history.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The second-highest train station in Europe.

This long line of cement defensive wedges is named after the famous chocolate bar for obvious reasons.

This simple apartment may have inspired some of the most important theories in the history of science.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A kaleidoscopic warehouse-maze of handmade neon signs.

Apparently, Hell has waterfalls in Slovenia.

Strange rumors surround the artist who created these solemn metal guard dogs.

A crumbling World War I fort that is reached through a series of concrete tunnels.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A miniature train-ride through Slovenia's largest cave system.

This massive subterranean fissure is known as the "underground Grand Canyon."