Art deco landmark on the outskirts of Washington, D.C.

A public art jibe at one of the United States’ oldest and longest-serving senators.

The span is crooked and made from two older recycled bridges.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

This beautiful Brooklyn monument over a crypt memorializes a grim and largely unknown story from the American Revolution.

A museum collection honoring the long history of the FDNY is held in a disused Manhattan fire house.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

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

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

A painfully obvious spy house sits right across the street from the Russian Embassy.

The Pentagon sits on a former island that was in Virginia at low tide and D.C. at high tide.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

The world's largest vertical wind tunnel.

This woodland architectural installation acts as a camera obscura for the heavens.

Art Deco urban decay at this historical building.

In a pedestrian tunnel on North Carolina State’s campus resides an expressive and artistic free-for-all.

The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.