The trials and tribulations of marking Poe's grave.

Ride the subways of yesteryear.

It was once the base for a series of domestic terror attacks.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

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

Washington's iconic carousel has a nice piece of Civil Rights history.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Plymouth's huge yet little-known memorial to the Pilgrims.

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

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

Statue commemorating the use of ether in anesthesia.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

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

An enormous, inside-out glass globe built in 1935.

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

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.