Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

The 28-foot granite map plots the locations of 40 theaters in New York City.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

These ancient artifacts are a testament to the enduring significance of the bull in Spanish culture.

A pair of gigantic baby heads greet passengers at Atocha Station.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

This lucky bronze frog was gifted to Madrid by a casino.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

The most loyal of little dogs, or a Victorian era publicity stunt?

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

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

When you're a great Russian Tsar, even your vomit gets a statue.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."