A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

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

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

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

The only certified Trappist brewery outside of Europe hides in the central Massachusetts hills.

Home to items never before seen by the public.

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

Last church of this militaristic WWII style.

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

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

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

This supermarket is suspended 25 feet above an interstate highway.

Solar powered Spectacle Island features all-green facilities.

The world's largest piece of copyrighted artwork.

Stolen goods adorn the organ at Old North Church.

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

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.

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