The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

The second largest roadrunner in the world stands 11 feet tall in his West Texas town.

This is one really big nut.

Petrified footprints of one of the very first vertebrates to walk on land.

This single room has survived the centuries with almost no deterioration.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

The highest bridge in America was built for an almost unnervingly small amount of money.

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.

Over 50 historic windmills whir away at this outdoor museum.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

San Francisco's first World's Fair, dedicated to the wonders of California.

Haunting and beautiful trees, doomed to die.