This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

One of the few surviving "Wigwam"-themed motels.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Lie in a hammock where George Washington stood.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This freshwater spring fills with 10,000 gallons of water per minute.

A bit of retro transportation flair preserved in the world's largest department store.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

Walk the whole Mississippi River!

This historic hotel invented the chocolate brownie.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

This replica of the Greek structure is in the heart of Nashville.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Moonbows over Kentucky.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The crumbling remains of a 19th century fortess.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A natural gas leak provides a flickering flame beneath a waterfall.