Explore the odd assortment of items that have washed up on the beaches of Plum Island.

An eerie, derelict amusement park in Berlin.

An abandoned Santa park is as far as this proposed theme park kingdom got toward completion.

Home to an apple tree that can produce 25 different varieties of fruit.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

One of the largest trees of its kind in California.

Beautiful antiques and obscure engineering artifacts trace the evolution of phones from rare luxuries to ubiquitous.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

The abandoned military base looks like a post-apocalyptic wasteland.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

For decades, a bottle factory dumped their waste into these waters—now it's considered the best sea glass beach in England.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

France's national museum of scientific and industrial instruments.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

A museum of carnival attractions where you are invited to ride the rides.

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

This permanent exhibition of commercial signs aims to preserve the cultural heritage of the city.

The only museum about the history of dentistry in Canada.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A kaleidoscopic warehouse-maze of handmade neon signs.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.