What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A centuries-old church stands as a testament to Boston's "father of architecture."

This parking garage was the site of what was - at the time - the largest cash robbery in history.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

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

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

This massive World War II calculator hearkens back to the days when "computer" was a job title.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

These whimsical works of art tell the story of the city's past and present.

One woman’s obsession gave birth to this lovely oddity at the Boston Public Library.

Statue commemorating the use of ether in anesthesia.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Bouncing, delightful, mechanical art at the MIT Museum.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

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

A mysterious stone embedded at the base of a historic Boston building.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Impossibly life-like natural history models created out of glass by a father and son.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.