I mean who doesn’t want to drink wine in a castle? Located at the top of the Napa Valley region in Calistoga, Castello di Amorosa is where we started our day after our brunch at Auberge de Soleil. We enjoyed not having to book a tour time because we did not know what time we would arrive. It was crowded when we went around 3 in the afternoon, but we were able to get in without a wait. Across the highway is where we ran into the billboard Napa Valley sign – a must stop photo op.