The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Three prestigious academic collections come together to create a world-class natural history museum.

A school used as a model for public education across the country.

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

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

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

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

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

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

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

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

Statue commemorating the use of ether in anesthesia.

Historic Hull Street was actually the first street with a proper name in the Boston area.

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

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

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

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

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

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

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

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

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