Doug Mo (Gone Vagabonding):
Downtown Pittsburgh By Night
Doug Mo (Gone Vagabonding):
The United Steelworkers Headquarters
Doug Mo (Gone Vagabonding):
Fallingwater
Doug Mo (Gone Vagabonding):
PPG Place
Doug Mo (Gone Vagabonding):
Pittsburgh Downtown
Doug Mo (Gone Vagabonding):
The Morning Paper
Doug Mo (Gone Vagabonding):
Fallingwater's Central Column