St Peter's Basilica dome, Renaissance architectural style, grandiose, ornate, intricate details, white marble exterior, golden accents, ribbed vaults, oculus, lantern tower, statues of saints, Bernini's Baldacchino, intricate mosaics, circular base, massive columns, ornate capitals, subtle gradient shading, dramatic lighting, atmospheric perspective, Baroque-inspired ornamentation, symmetrical composition, grand staircase, majestic atmosphere.