The scene of the United Kingdom's most famous UFO incident, dubbed the "British Roswell."

The poet's been ambling through these New York woods since 1940.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

A Spanish forest is filled with mysterious stone carvings.

This oak sculpture at the edge of a small woodland is nine feet tall and shrouded in mystery.

This statue, deep in a Swedish forest, is all alone, just like the renowned recluse would have wanted.

An abandoned castle owned and ignored by Masons carries a cursed history.

Home to the "Circus" trees created by Axel Erlandson.

Known as the "Fat Man of Maldon," Bright was a larger-than-life figure.

The indecision over what to place in this square was immortalized with a plaque.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

An Aztec snake god has taken the material form of an apartment complex.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The formidable fowl can be found standing near an isolated hiking path.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

Along a California highway is a kind of Jurassic Park made of metal.

A gigantic sculpture garden is packed with innovative oddities.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

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

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

Dozens of large-scale, creative, evocative curios from prominent artists dot the calm outdoor space around this major museum.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.