Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Built in 1512, the oldest cathedral in the Americas.

The final resting place of Christopher Columbus - or possibly someone else.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.