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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The oldest tavern in Lowell has dedicated fans of its fan.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

An underground magnet for ever-changing street art.

An homage to everyone's favorite prehistoric cartoon family.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

An eccentric inventor's castle home with its own indoor weather system.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A mysterious spot where the laws of gravity seem not to apply.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

A massive sustainable farm designed by the mastermind behind Central Park.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.