Act as a seasoned historical architect with expertise in Ancient Roman urban design. Create a highly detailed, photorealistic image of a bustling Roman city at the height of its glory. The scene should feature [grand marble columns], [ornate triumphal arches], and [lush public gardens] under a golden sunset. Include intricate details like mosaic-tiled pathways, bustling market stalls, and citizens in traditional togas. The composition should emphasize the grandeur of Roman engineering, with aqueducts in the background and the distant silhouette of the Colosseum. Use warm, vibrant colors to evoke the opulence of the era, and ensure the lighting highlights the textures of stone and bronze. The image should transport the viewer back in time, capturing the essence of Roman civilization's architectural mastery.