This magnificent Japanese garden provides a moment of Zen in rural Vermont.

This abandoned ironworks was once the most important military supplier in America.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

Once the largest gravity dam in the world.

The massive machine creates cracking displays of indoor lightning.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

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

The site of Paul Revere's historic two lantern warning.

A men’s restroom became a sandwich shop.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

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

The headquarters in Salem doubles as an occult art gallery.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

What is it about mushrooms that makes people wish they lived inside of them?

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

The first and only carousel with a lineup entirely of insects.

The oldest continuously operating farm in New York State.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.