This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

The largest public collection of roses in the United States.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A journey through a curious collection of oddities and wonder.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

A Jurassic artscape composed of transmission casings and other mechanical parts.

The only thing stranger than stumbling onto these philosophical musings is the story of the homesteader who created them.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Natural rock water slides hidden in the remote forests of northern Idaho.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

An art-filled botanical garden and former dyeworks hiding in plain sight.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This Quebec estate is home to the elaborate gardens of a self-taught horticulturist.

Harder layers in colorful sandstone weather out as prominent “fins" and even more intricate and bizarre shapes.

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

A clear blue swimming hole with hidden caves, still unexplored.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

In the middle of a remote desert town is a surprisingly opulent hotel.

A terrific purveyor of natural history objects and curios.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.