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

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

Dedicated to a colonial woman who was hanged for being a Quaker.

A gift to the children of Boston, this bronze bear represents playfulness, a spirit of love, and the warmth of big hugs.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A luxury hotel constructed out of a former jail.

This hotel was the site of major events in sports and radio history. It was also used as a detention center during World War II.

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

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

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

The massive machine creates cracking displays of indoor lightning.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Radical Bookstore and Community Space.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

The neighborhood surrounding the memorial was the epicenter of the AIDS epidemic in Louisiana.

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

The beautiful, fruit-covered facade hints at this building's former life.

The world-record holder for the longest bridge stretching continuously over water.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

The second oldest continuously operating bar in Louisiana.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.