This floating cinema brings new meaning to the phrase "going out" to the movies.

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

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

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

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

When you can't get to the Pacific, just go to Florida.

Over 120,000 curious objects that have shaped our modern world.

An abandoned water sports stadium that has become a haven for graffiti and decay.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This geothermal hot spring hides beneath a slowly growing mineral dome.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A museum has some wedding cake dating to the Teddy Roosevelt administration, and some bacon from FDR's.

A monument to a survivor of harsh pioneer life, frostbite, and primitive surgery.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.