Also known as the Limete Tower, la Tour de l'Échangeur can be seen from almost everywhere in Kinshasa.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

A stunning Catholic cathedral built by a curve-loving communist in Brazil’s newly created capital.

The little bear in the "funny kind of hat" has made his way from London back to Peru.

An emporium for the weird, creepy, rare, and just plain gross.

The magic's in the hole!

A tribute to a unique bike race that takes place every year.

A herd of colorfully painted bovine statues can be found in the middle of "cowtown."

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

Inside this building is another country within Rome, a sovereign entity without a physical territory.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

An 18th-century post box used to alert the church of sick and ailing foreign pilgrims.

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A statue representing a lost Roman profession that was vandalized for centuries.

This statue is the only female representation of Rome's "talking statues."

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A massive marble foot is tucked away in a small alley near the Pantheon.

Plaques on its facade commemorate the Tiber's most destructive deluges.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.