The only recreation of William Shakespeare's indoor playhouse.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

An original apothecary from 1792.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The romance of early commercial flight still fills this Art Deco destination.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A priceless collection of the Nation's cryptologic history.

This research center for rare prosimians is studying how they sleep to help prolong human life.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

The world's largest piece of copyrighted artwork.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

Historic Hull Street was actually the first street with a proper name in the Boston area.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

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

Ice cream stand, snack bar, and time capsule of milk conveyance.