The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

An artist of the American Revolution is entombed beneath the Yale art gallery he founded.

The colonial home of Paul Revere during the American Revolution.

This historic psychiatric hospital is haunted by its chilling past.

This sanitorium-turned-asylum-turned-prison is now abandoned and a hotspot for enjoyers of the paranormal.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

A fictional town that was briefly brought to life before fading once again out of existence.

The site of the first "historically true" UFO encounter in the U.S.

A floating museum that was sunk by a flood and left to rot in the tides.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

This abandoned prison castle has become an imposing gallery of graffiti art.

A Kansas grassroots sculptor decorates the local roadways with his sculptures made from found objects.

This former mining town was named the most toxic town in America.

A mysterious light of unknown origin on the backroads of Missouri.

Take in the views of Big Ben with a Guinness in hand at this floating pub aboard a 1930s Dutch barge.

After an Englishmen was killed by a samurai here in 1862, a two-day war changed the course of Japanese history.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

The largest recovered section of Titanic sits in a hotel in Las Vegas.

Tucked away in the forest, these giant wooden trolls delight visitors in Charlestown, Rhode Island.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

Star-spangled and 38 feet tall.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

A luxuriant botanical garden below sea level.

From printing money to live music, this Beaux-Arts style building has had many identities over the last century.