These pretty kitties killed and ate as many as 135 railway workers.

This elaborate towering structure was once famed for its revolutionary height.

A history of the U.S. military, with a focus on Pennsylvania's contributions.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

The curious underground history of keeping Paris clean.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

Take a trip to the past aboard a 1920s railcar or open flatcar for a scenic ride through Maryland farm country.

Not all airplanes are found in hangars or on runways, but this wayward fuselage seems out of place in its odd rural resting place.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

The world's oldest continuously operating airport was founded by the Wright Brothers.

This bell is one of the last remnants of the lost city of Triadelphia.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

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

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

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

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.