- Cincinnati Architectural And Historical Icons: Triumph of Design and Innovation (American and European Architecture)
- Lyon, France Passageways: Roman Aqueduct of Gier, Traboules and Bridges
- The Abandoned Western Cascade Mountain Railroad Tunnels: 1910 Wellington Avalance
- The Red-Light District of Butte Montana: The Decadence and Dissolution of a Local Institution
- Columbus, Ohio Architectural and Historical Icons





























