Château des Ducs de Bretagne (sunrise/sunset): The castle's white towers and moat are stunning backlit during golden hours. Best before 8am or after 5pm.
Passage Pommeraye (midday): The ornate arcade with natural light from skylights creates perfect symmetrical shots. Most beautiful between 10am-2pm.
Place Royale Fountain (sunset): The illuminated fountain and surrounding classical buildings at dusk create romantic compositions. Best 5-7pm.
Mechanical Elephant on Île de Nantes (golden hour): The fantastical structure is photogenic anytime, but golden-hour backlighting is extraordinary. Arrive 1 hour before sunset.
Bouffay Medieval Streets (early morning): Narrow cobblestone streets with historic buildings are magical before crowds arrive, especially with moody lighting. 7-9am ideal.
Cathédrale Stained Glass (afternoon): Interior stained glass windows are gloriously lit by afternoon sunlight, creating colorful patterns. Best 2-4pm.
Parc de la Gauche Loire Riverside (any time): Wide open green spaces with river reflections provide landscape photography opportunities throughout the day.