You can climb to the summit of Black Mountain, as long as you sign the waiver.

Inside this mountain lies several kilometers of breathtaking caves.

A honeycomb-like structure of interlocking shelves creates a beehive of books.

These curious caverns have been home to mushrooms, gangsters, and disco.

Every winter, dozens of otherworldly ice structures sprout up from a rigged up artesian well.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

A museum devoted entirely to the rattlesnakes and snake-related art.

A sculpture of a flying hawk made from colorful car doors.

A 6,888-carat piece of turquoise that bears a striking resemblance to the first President of the United States.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

An antique store houses the last operational diner from the defunct department store chain.

A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

Rustic natural hot springs in the deciduous rain forest.

The remnants of an early American attempt at missile defense.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

A rare view of a preserved Victorian science museum.

This Garden District mansion was built to be bigger and grander than its original owner's former partner turned rival.

Every year, the colorful murals of Montreal get a complete makeover.

The world's largest commercially available hamburger is complete with 15 pounds of lettuce, 30 pounds of bacon, and 36 pounds of cheese.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.