Byzantine: Architecture
Architects developed the pendentive —a triangular structural solution—to support large, heavy domes atop square bases.
About Byzantine Architecture and the Rise of Christianity - ThoughtCo byzantine architecture
Exteriors were often simple brickwork, but interiors featured walls clad in marble and ceilings covered in shimmering gold and glass mosaics. byzantine architecture
Rows of small windows were often placed at the base of domes to flood the space with natural light, creating an "ethereal" glow. Key Architectural Examples byzantine architecture