Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

This grand gothic brewery has been pumping out suds for over a hundred years.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The United States Capitol's former columns still stand.

The Virginia home of one of the signers of the Declaration of Independence is being preserved with a unique glass facade.

The oddly shaped, steam-spewing building is now an art studio and gallery.

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

A bunker "with enough U.S. currency to replenish the cash supply east of the Mississippi" in the event of nuclear war now protects nitrate film.

Outsider art meets paleontology at this roadside reptile repository.

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

Railroad came. People came. Railroad left. Town died.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Mile-long cave system near Great Smoky Mountains.

Enormous lake at the bottom of a unique cave system.

The skeletal white beams stand as a monument to religious dissent.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

One of the last active volcanoes on the Eastern seaboard.

One street divides a single town that stands in two U.S. states.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

The rogue roots are gradually consuming some of the historic marble grave markers.