The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

Jesus' footprints and the first catacombs in the world.

A sinkhole known simply as "The Hole."

One of the first major shipyards in Brooklyn.

Where the Monitor was launched and ushered in the age of the "ironclads."

Where Greenpoint's first European settler—and troublemaker—made his home.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

At this hidden studio, the dying art of taxidermy is alive and well.

Nondescript building owned by ExxonMobil working on siphoning Greenpoint Oil Spill out of the ground.

A 9-story, poured concrete structure which was used as a glue factory with an indelible smell.

Nature and beauty amidst pollution and industrial wreckage.

A modern addition to the Greenpoint skyline.

If you were standing here on October 5th, 1950, you'd be dead.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

Circleville is seriously smitten with this giant gourd.

The mounds at this site were reconstructed with the help of archaeologists and historians.

This award-winning men's bathroom was just too beautiful to not allow women to see.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

This replica of the Greek structure is in the heart of Nashville.

You’ll feel like you’ve gone through the looking glass at this contemporary art museum filled with glass sculptures of every size, shape, and color.

Where one of Greenpoint's "five black arts" was practiced.

2 square block factory in Greenpoint erected in 1936.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.