A refurbished locomotive from a bygone era in the middle of the Jordanian desert.

The only quarter of the Old City not dedicated to a major world religion.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.

Campus tradition says couples who walk beneath this enormous oak will stay together forever.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

This no man's land slicing through the island is strewn with abandoned relics of another time.

Elevated freight railway turned wildly successful urban park.

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

A popular European tradition makes its way to the states on one of America's most famous bridges.

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

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

The most playful of the life-sized statues that make up Singapore's "People of the River."

An architectural oddity hides in plain sight on this iconic London bridge.

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.