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

On the Hudson resides one of the largest clocks in the world.

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

The remains of a 19th century spring, and the site of an infamous unsolved murder.

This huge work of functional public art replaced a landfill in New Jersey's Meadowlands.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

A whimsical monument deep in this park commemorates the groups that helped build it.

The only remaining piece of hull of the most decorated US ship of WWII is this giant name plate.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Whimsical artist house in the New Jersey woods.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

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

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

Featuring the the longest lift span of any vertical-lift bridge in the world.

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

American involvement in World War I officially ended in 1921 in New Jersey, three years late and thousands of miles from the battlefield.

A recently abandoned psych ward at the end of Sanatorium Road.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

New Jersey's last historic covered bridge was rebuilt from pieces of the original 19th-century structure.

Nassau Hall has served as army barracks, a museum, and played a key role in the American Revolution.