At a rest stop north of Seattle, the trunk of an ancient tree.

Indents in the pavement are all that remain from a grisly death machine in Paris.

Polish babkas, cheesecakes, and rose jelly-filled doughnuts are made fresh daily at this neighborhood stalwart.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

A purported 17th-century religious artifact with noteworthy associations to Catholic history in the U. S.

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

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

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

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

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

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

A Civil War Museum with some notable medical antiques.

An original apothecary from 1792.

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

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

Before founding the American Red Cross, Clara Barton had a tremendous humanitarian impact by locating thousands of missing soldiers.

A brass and marble scale model of the solar system embedded in the concrete.

Beneath unsuspecting visitors feet, a capsule containing pieces of America’s civil rights history.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

A building claimed to be London’s smallest house has an obscure history.