This carved armchair marks the final resting place for two pals in the Chicago suburbs.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

On the shores of Lake Superior, a small group of monks makes sacred sweets.

One of the best places to dig—some say on the planet—for six different types of chalcedony.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

In which a local geological marvel becomes a quaint roadside attraction.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

If you ever wanted to own an actual piece of Disney World, this is the place to shop.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

Narrow gorges and deep pools created by long-ago glaciers.

An enormous, inside-out glass globe built in 1935.

The longest navigable underground river in the United States is home to countless blind and albino animals.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

This iconic sluice gate is a favorite haunt for joggers, fishing enthusiasts, and even ghost hunters.

This 700-year-old street food market features baby octopus and soy donuts.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Generations have refused to move this doll from its dusty resting place to preserve a castle from a watery fate.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.