Golden Gate Park's historic collection of plants.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

One of the now-less-hidden floral gems of the "Emerald Necklace."

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

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

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

The world's largest piece of copyrighted artwork.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.

A single room pays homage to the prodigious achievements of the 30th President of the United States.

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

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

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

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

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

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

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

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

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

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