Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Baroque celebration of the end of the Great Plague of Vienna.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A sweet symbol marks the place where torturous executions were once carried out.

Protecting the dead from opportunistic body snatchers.

The most loyal of little dogs, or a Victorian era publicity stunt?

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

This banal Parisian entranceway is not what it seems.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The celebrated eyesore created by starry-eyed sweethearts.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

France's most famous cemetery, with some of its most curious tombs.

A subterranean house of worship carved right out of the bedrock.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

The mystic whose incorrupt corpse still attracts the faithful.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

Two stone columns flank the grand Venice square, but there were supposed to be three.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.