Where Nor'easters go to die.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

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

The institution is sitting on a goldmine of 21,000 paints, varnishes, pigments, and primers preserved for posterity.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

In the basement of the U.S. Capitol Building is a hidden storage room full of ornate floor tiles leftover from the 1850s.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A historic neighborhood church is reborn as a psychedelic arts collective.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A century-old network of freight tunnels underneath the city's historic business district.

A Museum of Holography frozen in 1974.

All of Chicago's wood-paved streets are long gone but two alleys remain.

A lush green oasis in the middle of Chicago.

Theater has had many different incarnations but has survived the ravages of time.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

This shop for all your super spy needs hides an educational secret.