The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

The ghost town that was one of New Hampshire's first settlements now exists as a park detailing its history.

The New England cabin where an infamous British occultist conducted experiments in "magick".

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

Antique gaffe kept in the basement of a small Vermont natural history museum.

A small chapel celebrating the spiritual bond between dogs and humans.

The tragic tale of the dentist who pioneered the use of anesthesia.

An easy-to-miss plaque marks the building that first held this 19th-century telephone innovation.

These Benedictine nuns have been making artisanal cheeses since before it was cool.

Who knew the Devil's domain was a hot spot for tubing?

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

Home of Philip Johnson, one of the 20th century's most influential architects.

The kind of mixed-up place that drives archaeologists crazy.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

This World's Fair showpiece was built in Chicago, but shipped to Maine.

A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.

The most photographed house in Maine looks good enough to eat.

Man-made geyser that rises to the exact height of the Gateway Arch.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."