This community on a small Venetian island has taken to painting their houses in bright neon hues.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Outsider Art Community.

This woodland architectural installation acts as a camera obscura for the heavens.

Experience park where visitors are told to expect the unexpected.

Renaissance villa and gardens complete with a tormented colossus.

The celebrated eyesore created by starry-eyed sweethearts.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

An eclectic trailer park retreat in the middle of the California desert.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A reproduction of earth's many biomes.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

Olfactory delights in San Francisco's Botanical Gardens.

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

Featuring a casually threatening atmosphere along with dessert and coffee to die for.