Firuzabad (Fars, Iran). Qala-i-Dukhtar (chateau-fort). Early 3rd century, Sassanian. Squinch in dome-chamber, plastered. Stone. Photographer: Byron, Robert
Firuzabad (Fars, Iran). Piers of a fallen bridge in gorge. Below rock-carving of Ardeshir I and Hormuzd, above which, on cliff, a Pahlevi inscription says it was built by Ardeshir's Grand Vizier. Photographer: Byron, Robert
Ghazni (Southern Afghanistan). Minaret of Mahmud ibn Sabaktagin, before 1030. Detail of Kufic panels at top, eight in number. Brick and terracotta. Photographer: Byron, Robert
Ghazni (Southern Afghanistan). Minaret of Masud III ibn Ibrahim, 1099-1114. Detail showing Kufic panels at top, eight in number. Brick and terracotta. Photographer: Byron, Robert