This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Centuries-old columns from French monasteries provide structure for this courtyard within an Ohio art museum.

The world's largest piece of copyrighted artwork.

This small shop walked so America could run on Dunkin'.

Ice cream stand, snack bar, and time capsule of milk conveyance.

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

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

The site of Paul Revere's historic two lantern warning.

The massive machine creates cracking displays of indoor lightning.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

Museum dedicated to awful artwork.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

There's nothing shrimpy about the world's largest artificial prawn.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

A giant open-air sculpture made of over 200 full-sized boats.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

A giant ball made from pieces of an old Jeep.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

There aren't too many operational funiculars around, but Pittsburgh has two!