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

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

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

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This historic sculpture from the 16th century is even older than the city of Boston.

The bench featured in the film with Robin Williams and Matt Damon has become a popular destination for moviegoers.

Statue commemorating the use of ether in anesthesia.

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

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

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

Located on the campus of Emory University, this museum is filled with objects from the Americas to ancient Greece.

A small cell adjacent to this church was once the bedroom for a renowned saint.

Among the busts of heroes of the Roman Republic of 1849, there is also a statue of a boy and his dog.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

An alchemist's “magic door” stands in the middle of a Roman park.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

Ancient ruins hidden underneath a modern luxury hotel.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The only ancient site that remains on the south bank of the sacred Ilissos river.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A collection of 20th-century automata, penny arcade games, and musical contraptions.