The only rotating bar in New Orleans has been slowly spinning since 1949.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The curiosities and wonders of pharmacy in a delightful historic building.

The final resting place of New Orleans' most famous voodoo priestess.

Around 160 years ago, this spot marked the location of a wharf along the shores of the Charles River.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

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

The world's largest piece of copyrighted artwork.

This impressive Boston holy house is the American mecca for Christian scientists.

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

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

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

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.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

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

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

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

Hollowed out cedar log tubs set in an ancient towering forest.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.