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

Silverware in the sidewalk outside a grocery store cements this neighborhood’s Italian culinary history.

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

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

No one messes with the Massachusetts sacred cod, not this time...

Painstakingly built dioramas sit unnoticed in a Boston office building.

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

This landmark cemetery in Boston was created more than 300 years ago.

Narrowest house in Boston.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Radical Bookstore and Community Space.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Museum dedicated to awful artwork.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Dim sum, served in a grand old theater.

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

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The only cave in Louisiana has played host to a state's-worth of clandestine activities.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

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

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

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.