Rome isn't a city with ruins — it IS the ruin, walkable across three millennia in an hour. Pre-book the Colosseum combo and Vatican (dome climb worth every step), do Trevi at dawn, then the Pantheon-Navona golden hour. Seafood pasta and margherita are the Muslim traveler's universal friends; drink free from the 2,000-year-old nasoni fountains; walk two streets off any landmark for better, cheaper food.