The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

More than 5,000 contemporary and "historic" mustards from around the world.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Museum preserving torture methods from the past.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

There are owls with glowing eyes in Herald Square.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

Make a tough dinner decision: Octopus wasabi roulette or bull penis?

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

Townhouse facade doubles as an RMS Titanic Memorial.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."