This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

A luxury hotel constructed out of a former jail.

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

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

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

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

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

The bears may be gone, but their old cages can still be found.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

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

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

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

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

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

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

Avoid gangster interaction while window-shopping.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

The first and only carousel with a lineup entirely of insects.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.