Seat of the Duke and Duchess of Devonshire for centuries.

The world's oldest model village.

Human-made caves excavated to hide a secret society of wealthy pagans.

This magical museum celebrates the life and work of a seminal children's book writer (and occasional spy).

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

Puzzles within puzzles hide a golden treasure in this hedge maze.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

The first German gnome who popularized the garden decoration.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Home of an evil witch famous within southern folklore.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

This mysterious hill seems to pull objects uphill.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

This structure among the trees was the result of divine inspiration.

Ornate limestone building now filled with geologic specimens, and more.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

All that's left of the quintessential "cabin in the woods."

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

The largest earthwork effigy in the world.

Prehistoric animals decorate this popular outdoor park.