The most famous structure of Byzantine architecture and notable for its large dome is which building?

• A. Hagia Sophia
• B. St. Mark's Basilica
• C. Santa Maria del Fiore
• D. Church of the Holy Sepulchre

Answer: (A)

Raising a large, centralized dome over a spacious interior is a defining achievement of early Byzantine architecture, showing how engineers resolved carrying a mighty dome on a square base. Hagia Sophia embodies this breakthrough: built in Constantinople in the 6th century under Justinian I, its immense dome sits atop a complex system of arches and pendentives that transfer weight to the supporting piers. The result is a vast, column-free interior bathed in light from a full ring of windows around the dome’s base, creating a sense of weightless grandeur that became the emblem of Byzantine sacred architecture. This combination of monumental scale, luminous interior, and innovative structural technique set a standard that influenced many later buildings in the Byzantine world and beyond. The other options are significant for different reasons—St. Mark’s Basilica is famed for its ornate façade and mosaics, Santa Maria del Fiore for Brunelleschi’s Renaissance dome, and the Church of the Holy Sepulchre for its early Christian importance—but none match Hagia Sophia in defining the large-dome, central-plan hallmark of Byzantine architecture.