Final answer:
The Hagia Sophia is rooted in Byzantine architecture, which is based on Early Christian influences and traditional basilica-style layouts.
Step-by-step explanation:
Hagia Sophia is considered as the epitome of Byzantine architecture, a style which prevails as the concept derived from the question. The current structure of Hagia Sophia, although endowed with a blend of historical features, was primarily built as a church inspired by Early Christian and Byzantine architectural forms, particularly the traditional basilica style layout. It's characterized by a rectangular building with a central dome, often regarded as the principal emphasis on architectural design during that time. Hagia Sophia's massive size and opulent decorations, such as a 49-foot silver iconostasis and mosaics, reflect the wealth and power of the Byzantine Empire.