The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Washington's iconic carousel has a nice piece of Civil Rights history.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

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

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

A computer bug so primitive it was an actual insect.

The astonishing collection of an infamous criminologist.