The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Beautiful steampunk ghosts of early Massachusetts.

The massive machine creates cracking displays of indoor lightning.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

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

Dim sum, served in a grand old theater.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A beautiful Victorian-era cemetery, complete with a miniature village.

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

An antiquated German apothecary on Chicago's North Side.

A Bibliophile's Dream.

A speakeasy takes on Chicago's drinking culture.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This shop for all your super spy needs hides an educational secret.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

This simple gravestone remembers a pig who single-hoofedly raised $19,000,000 for the Navy.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.