The home of aviation trailblazers, in a remote corner of the big city.

World Trade Center memorial likened to a woman's sexual organ.

A simple plaque remembers an act of WWI terrorism that obliterated an island and forever scarred the Statue of Liberty.

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

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

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

Because sometimes the most efficient route from A to B isn't a straight line.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.