A German apartment building hosting as many trees as human occupants.

These 18th century gardens tell a rocky story of the son of Odysseus.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

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

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

The largest underground church in Europe.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

This professional clown's home is an outsider art wonderland.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Bohemian paradise covered in majestic forests.

Extraordinary sculpture garden created by an eccentric English poet.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

The largest earthwork effigy in the world.

Ancient human, animal, and geometric figures drawn in the earth.