NYC's legendary underground network for bovine transportation.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

Home with Gothic windows featured in a famous painting.

The greatest real estate coup of all time.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.

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

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

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

Mysterious 500-year-old tapestries depict a unicorn hunt.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A reproduction of earth's many biomes.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

Famously misunderstood wonder of the ancient world

The bronze uniforms commemorate the vital role of women during World War II.