Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

A quintet of history museums make this Virginia graveyard as much a resting place for funereal history as it is for people.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

A tribute to two brothers' artistic endeavors.

One of only two sites in the United States containing the remains of Buddha.

Just outside the Naval Academy, Hell Point is a historical marker that could easily be the point where failed students wait for the bus.

First built around 1848, this bridge was destroyed by arson, but original timbers are included in the replacement.

Baltimore's first skyscraper may be home to the inspiration behind pulp fiction's most celebrated bird.

FDR's Art Deco hospital tower was hopelessly inefficient.

The Forest Service's surprisingly sophisticated collection of wildfire prevention art features America's most beloved bear.

This one-room cabin where the young colonel slept during the French and Indian War.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.