A crumbling hospital from the 1850s on Roosevelt Island.

One of only two commuter aerial tramways in the United States.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The legendary building that needed ghostly approval before being built.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

Some of the Old West's most notorious outlaws frequented this mining town.

This wild explosion of color on a disused water tower tells the whimsical tale of a curious puffin.

The site of the first medieval crusade that pitted Christians against Christians.

Historic medieval fortified city in southwest France.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

A beautiful and classically designed villa, with an hourly infestation of monsters.

Antique cinematography artifacts fill this museum dedicated to the inventors of the moving picture.

An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

This spooky statue sits outside a famous Prague theater.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Looming communist pillar with a Czech twist.

A mocking tribute to the past and modern leadership of Prague.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”