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

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

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

The oldest playground in America.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

One of the last remaining movie theatres in the country that features a rear-projection system.

Memorial to a beloved puppeteer as well as all street performers.

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

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

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

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

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

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

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

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

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

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

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

A tiny monument to the classic American candy.

The infamous Boston Mob ran rackets from an office here in the 1970s.

A men’s restroom became a sandwich shop.