This magnificently macabre shield shows the power of chivalrous love in medieval times.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

An architectural oddity hides in plain sight on this iconic London bridge.

The medieval woodcut-style artwork chronicles life in medieval London.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

The commemorative stone column conceals a secret laboratory.

Its collection includes a broad array of social, geographic, graphic design, and political history.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

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

A men’s restroom became a sandwich shop.