Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This funeral home had the honor, if that is the correct word, of hosting the funeral of the famous Sacco and Vanzetti.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

An enormous, inside-out glass globe built in 1935.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This South London cemetery holds the remains of more than 15,000 people.

Try not to get slimed in Tribeca.

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

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

17th century puritan church with connections to the Salem Witch Trials.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

19th century tunnels burrowed under Liverpool.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

This small collection of rare books was uniquely locked up for safe keeping.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.