This turn of the century masterpiece has a mysterious goaty interloper.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

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

A psychedelic labyrinth on the San Francisco bay.

This remote British Imperial telegraph relay outpost drove men insane.

Nature's water park in the Wadi Bani Awf valley is full of pools flanked with cliffs and natural water slides.

An imposing Omani fortress surrounded by date palm trees.

Groups of prehistoric tombs that dot the mountains of northern Oman.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

A garden of flying flowers.

Peek through a transparent pyramid and drink in the mountain made of books.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

Museum covers every step of the chocolate-making process, from cultivation to the finished product.

A beautiful maze marks where three countries meet.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.