Two flush headstones mark the only known graves to be embedded in an airport runway.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

War prevented this Polish composer's body from being returned to his home country for 51 years. Though his ashes eventually made it home, his heart stayed behind.

This family of wooden moose statues have become local celebrities in their hometown.

A diorama of the Civil War, fought by cats.

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

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This statue honors the author's groundbreaking family story.

The oldest military monument in the United States.

A miniature city within a city, complete with traffic signs, signals, and streets to teach Baltimore's youth traffic safety laws.

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

The Decoy Capital of the World.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

This historic lighthouse was well known for the large number of women who served as its keeper.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

One of the indelible moments of the American Revolution took place at this location.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.