On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

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

A Christian monastery stands on what was once a holy Incan temple.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

This vintage theme park is peak Christmas kitsch—and it's open all summer.

Experience life in one of America’s smallest neighborhoods.

In addition to over 80 vehicles on display covering over 100 years of motorcycle history, this free museum focuses on the people who ride and love these bikes.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

There must be a pun in this haystack somewhere...

The best way to get a sneak peek at the movies.

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

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.