• The Carnegie Mellon University campus

• Our primary reason for visiting Carnegie Mellon University was to see this exhibit in their Architecture Archives.

• Inside the foyer of the architecture building

• Thacher's Calculating Instrument, Model 4012 | Type: Cylindrical slide rule calculator | Keuffel & Esser Company (USA) ca: 1910

• The famous tile work in the entrance to Baker Hall at Carnegie Mellon University.

• Inside Baker Hall

• Carnegie Mellon University’s Baker Hall staircase, built in 1914, is one of Rafael Guastavino’s most famous creations.

• Guastavino’s tile work

• Guastavino’s tile work