The vast, legendary catacombs hold secrets much stranger than stacked bones.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Home to items never before seen by the public.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

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

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

The world's largest piece of copyrighted artwork.

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

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

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

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.

The massive machine creates cracking displays of indoor lightning.

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

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

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.

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

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

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