The historic Nilometer building on Rhoda Island (Gezira El-Rawda), Cairo, viewed from a stone-paved courtyard framed by a large ficus tree and a whitewashed building with ornate cornice detailing. The octagonal structure with its distinctive conical metal roof and crescent finial was used for centuries to measure annual Nile flood levels, serving as a critical agricultural and taxation tool in Islamic Egypt. The well-maintained garden features trimmed shrubs, terracotta pots, palm trees, and a grass lawn overlooking the Nile.