Castello di Amorosa

This medieval Tuscan castle and winery stands out in Napa Valley as one of its most unusual buildings. At this gorgeous location on the hillside above Calistoga, you can explore the castle's Grand Barrel Room, chapel, and Great Hall, and more curious rooms like the Torture Chamber and dungeon. Pick from a variety of tasting tours to sample some of their award-winning wines, paired with charcuterie, cheeses, and chocolate. The best time to visit is from August through October to catch Napa’s harvest season—it gets busy so make your reservations early to secure your slot. – Tripadvisor