Once the most densely populated place in the world, this island is now a ghost town.

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A complex and beautiful system of rice terraces covers a million acres over the mountains.

The middle finger of modernity.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

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

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

150-year-old satirical tableaus made from stuffed frogs.

The atmospheric road was never meant to be so creepy.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

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

Every autumn, this hillside is ablaze with red summer cypress.

Hot springs monkey spa in the middle of Hell's Valley.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Stunning wetlands ablaze with pink lotus flowers.

Bioluminescent firefly squid light up this Japanese fishing port.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

Abandoned railway line circling the city of Paris.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

Rome's semi-secret peephole vista is also a former Crusader stronghold.