Only two cities in the United States have ever been bombed from the air.

They are, Tulsa, Oklahoma and Philadelphia, Pennsylvania.

African American residents of Tulsa, Oklahoma, in an area of town known as "Black Wall Street", and African American residents known as the "Move" people, of a West Philadelphia, Pennsylvania neighborhood, share this dubious distinction.

Learn more about this here:

http://www.mindfully.org/Reform/MOVE-Phihladelphia-BombNYT14may85.htm

And here:

http://www.asapnet.net/pclaser/