rwgabbro1:
The Brownstone Chronicles, Part 5: Detail of Christ Episcopal Church, Waukegan, Illinois, USA (1888)
rwgabbro1:
The Glory of Regional Silurian Dolostone, Part 11: The Science of Fuligology at the Second Presbyterian Church, South Loop Neighborhood/Prairie Avenue District, Chicago, Illinois, USA (1874; bell tower 1884)
rwgabbro1:
The Glory of Regional Silurian Dolostone, Part 12: More on the Sublime Sciences of Fuligology and Bitumenology at the Second Presbyterian Church, South Loop Neighborhood/Prairie Avenue District, Chicago, Illinois, USA (1874; bell tower 1884)
rwgabbro1:
The Glory of Regional Silurian Dolostone, Part 15: The Eastern Facade of the Old Waukesha County Courthouse, Waukesha, Wisconsin, USA (1894)
rwgabbro1:
The Brownstone Chronicles, Part 6: Close-up of the Southern Elevation, Christ Episcopal Church, Waukegan, Illinois, USA (1888)
rwgabbro1:
The Glory of Regional Silurian Dolostone, Part 16: Close-up of the Eastern Entrance, Old Waukesha County Courthouse, Waukesha, Wisconsin, USA (1894)
rwgabbro1:
The Brownstone Chronicles, Part 8: The Northeastern Corner of the Chicago Club, the Loop, Chicago, Illinois, USA (1929)
rwgabbro1:
The Brownstone Chronicles, Part 9: Detail of the Northern Elevation of the Chicago Club, the Loop, Chicago, Illinois, USA (1929)
rwgabbro1:
Eclipsing the Sun for a Moment: The Temple of Portunus, Rome, Italy (various versions from the late 4th-late 1st centuries BC)
rwgabbro1:
The Brownstone Chronicles, Part 11: Black Crusting and Spalling, the Chicago Club, the Loop, Chicago, Illinois, USA (1929)
rwgabbro1:
Chicago in Stone and Clay: A Guide to the Windy City's Architectural Geology (NIU Imprint of Cornell University Press)
rwgabbro1:
The Brownstone Chronicles, Part 12: One More Glance at the Chicago Club, the Loop, Chicago, Illinois, USA (1929)
rwgabbro1:
The Geology of Terra-Cotta, Part 1: Railway Exchange Building, the Loop, Chicago, Illinois, USA (1904)
rwgabbro1:
Architectural Geology of Southwestern Wisconsin, Part 4: The First United Methodist Church, Mineral Point, Wisconsin, USA (1871)
rwgabbro1:
Geobrickology, Part 2: Detail of Old St. Patrick's Catholic Church, Near West Side, Chicago, Illinois, USA (1856)
rwgabbro1:
Architectural Geology of Southwestern Wisconsin, Part 5: The First United Methodist Church, Mineral Point, Wisconsin, USA (1871)
rwgabbro1:
The Geology of Terra-Cotta, Part 3: Close-Up of the Exterior of the Railway Exchange Building, the Loop, Chicago, Illinois, USA (1904)
rwgabbro1:
Geology of Fieldstone & Cobblestone Buildings, Part 4: Close-Up of the Western Elevation, Epworth United Methodist Church, Edgewater Neighborhood, Chicago, Illinois, USA (1891; addition 1930)
rwgabbro1:
Geology of Fieldstone & Cobblestone Buildings, Part 5: A Last Look at the Western Elevation, Epworth United Methodist Church, Edgewater Neighborhood, Chicago, Illinois, USA (1891; addition 1930)
rwgabbro1:
The Brownstone Chronicles, Part 19: Detail of the Western Elevation, St. Paul's Episcopal Church, Yankee Hill Neighborhood, Milwaukee, Wisconsin, USA (1893)
rwgabbro1:
The Brownstone Chronicles, Part 20: Detail of the Northwestern Turret, St. Paul's Episcopal Church, Yankee Hill Neighborhood, Milwaukee, Wisconsin, USA (1893)
rwgabbro1:
Geobrickology, Part 7: Detail of the Eastern-Wing Exterior; Headquarters, Water Tower, & Barracks, Fort Sheridan, Illinois, USA (1891)
rwgabbro1:
Milwaukee in Stone and Clay: A Guide to the Cream City's Architectural Geology (NIU Imprint of Cornell University Press)
rwgabbro1:
Graveyard Geology of Chicago, Part 19: William Kimball Monument, Graceland Cemetery, Uptown Neighborhood (1904)
rwgabbro1:
Architectural Geology of Dougga, Tunisia, Part 8: Temple of Juno Caelestis and Its Temenos Wall (AD 235)
rwgabbro1:
Graveyard Geology of Chicago, Part 21: Close-Up of the William Kimball Monument, Graceland Cemetery, Uptown Neighborhood (1904)
rwgabbro1:
Graveyard Geology of Chicago, Part 22: Detail of the Entablature; William Kimball Monument, Graceland Cemetery, Uptown Neighborhood (1904)
rwgabbro1:
"What Milwaukee Is Made Of" Podcast Series, Part 2: Cream City Brick Meets the Age of Fossil Fuels
