One of the world’s largest living advertisements is made out of pine trees.

A bizarre roadside attraction and the first instance of miniature golf in the world.

The palatial McDonald's that inspired Wesley Willis.

Wisconsin's most celebrated export gets the royal treatment on I-94.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

Experience a charming 1930's version of "infotainment."

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

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

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Mile-long cave system near Great Smoky Mountains.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

A bizarre house filled with an astounding array of collections.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."