What may be Boston's finest Art Deco building, located in the city's Financial District.

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

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

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Decades before the scandal, this staircase on the river was a literal "water gate."

Home to items never before seen by the public.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

Bouncing, delightful, mechanical art at the MIT Museum.

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

America's first public lending library began with a gift from Benjamin Franklin.

This supermarket is suspended 25 feet above an interstate highway.

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

The oldest playground in America.

The world's largest piece of copyrighted artwork.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

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

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

Impossibly life-like natural history models created out of glass by a father and son.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.