This modest marker near Notre Dame identifies the very center of Paris.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

An unusual round church in London with a Templar past.

One of America's most historic homes also holds a startling literary legacy.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

"Try not to knock anything over!"

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

This historic Boston building has gone from personal estate to porn theater and back again.

One of the indelible moments of the American Revolution took place at this location.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The Boston square dedicated to the dark poet who was born nearby.

A beautiful Victorian-era cemetery, complete with a miniature village.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Portlandia is the second-largest copper repoussé statue in the United States.

One part local history, 99 parts gruesome haunted house.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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

A wall of chewing gum moonlights as collective art.