Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

An abandoned Art Deco hotel nestled on the side of a wooded mountain.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

What do we know about the real woman behind one of the Beatles' most famous songs?

For just a few hours each morning, this market serves specialties from the city's shrinking Chinese-Indian community.

This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

An architectural marvel that dates back to the zenith of Indian architecture.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A rare example of an ancient Japanese hill castle believed to be the fortress of a legendary demon.

A collection of old steam and diesel locomotives sitting in a fenced-off garden.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Is this statue at Naumberg Cathedral the fairest of them all?

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

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

The hill that gave the Massachusett tribe, and later the state, its name.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

The platform atop this verdant volcano was built with the help of a royal elephant.