Tucked into Paris, Musée d'Orsay is one of those places that quietly earns its reputation — the kind of museum you walk past once, then think about all week. Trains, then Impressionists, on the Left Bank, and the locals quietly resent that we wrote about it.
Best at the edges of the day — a quiet weekday afternoon — and worth the detour even if you're staying on the other side of town. Bring a friend, leave the phone in your bag.