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

A cable-suspension footbridge that hangs high above the Mill River.

The world’s largest underground marble quarry is hiding in Vermont.

A mysterious echo seems to defy the laws of acoustics.

Over fifty whirling pools left by the glacial age.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Resonating tubes make music from highway overpass.

This locally-famous crevasse in New York State is icy all year round.

Believe It or Not, Ripley once called this chiseled mountainside “New York’s Mount Rushmore”.

Journey through vintage Americana inside this small Massachusetts shop.

Eight whimsical acres of metal art.

The site of the first "historically true" UFO encounter in the U.S.

Three acres of mythology-inspired sculptures are visible from the highway.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

One man's swirling six-acre monument of stone.

A peaceful international sculpture garden in upstate New York.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

Homemade rockets, dinosaurs, and robots make this New York small business much more than a furniture store.

The largest known open fault in the United States is basically a giant natural refrigerator.

100 massive sculptures in the Hudson River Valley.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.