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

A remote horde of architectural treasures fit for Indiana Jones.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

There's a crumbling old mansion inside the Smithsonian National Zoo.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

The site of the climactic scene from the classic horror film is now a historic landmark.

The United States Capitol's former columns still stand.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Years of archaeology, just chillin' by the water cooler.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Internationally known record store and purveyor of "dusties."