Hidden in plain sight, this creepy sculpture watches from above.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

An ornate aviary built during the Victorian trend of collecting exotic birds.

The sign at the garden gate reads: “These Plants Can Kill.”

Locals affectionately dubbed this World War I memorial "Tommy."

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.

An iconic waterwheel in the Pennine Hills marks the location of one of Britain’s most profitable lead mines.

Sidney Scurvy, the interactive computer sailor, takes you on a journey to discover the everyday lives of Cook and his men.

The oldest warship in Europe is still afloat.

This memorial depicts the unlikely team that won England the Sir Thomas Lipton Trophy.

This Georgian Gothic building was created to shelter and feed deer.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

The mouldering remains of a disgraced British children's icon are hidden in the brush of a public park.

A giant scrawl on the skyline of south London.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

Chemical fertilizer in agriculture's origin story begins here.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

These planks were originally installed to hold the dead.

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

WWII artifacts, including the building itself.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.