An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

A museum built around a bus-sized fossil on the side of the highway.

Cathedral carved out of salt, located a mile below the earth's surface.

The Uros people live on floating reed islands in lake Titicaca.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

A trading post in the North Pole where children send letters.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

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

A beautiful geyser under environmental threat.

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

An architect's childhood fantasy treehouse made real.

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

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The first declared National Monument in the United States.

One man's quest to save his town with a trail of record-breaking sculptures.

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

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.