While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Colorful boxes placed over the dead are left to rot and crumble.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

11,500 year old little girl found buried in an ancient fire pit.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

One woman's dream became a train hotel in her backyard.

The king of U.S. high points towers over every other peak on the continent.

Housing a morgue, rare and confiscated weapons, and autopsy remains, the Vancouver police museum displays the dark side of Canada.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

See massive fossils that are over 200 million years old in northeastern Arizona.

An urban laboratory.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

A picture-perfect town, perfect for blowing up.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

One part local history, 99 parts gruesome haunted house.

The only international border marker within the United States.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

Some of the smallest works of art in existence.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.