Castello di Amorosa, located in California's Napa Valley, is a medieval-style castle that includes a wine cellar with a tasting room. Built in the late 20th century, this unique castle was constructed using traditional medieval techniques and materials. The wine cellar, situated in the castle's underground tunnels, houses a vast selection of wines, including those produced on the estate's vineyards. The tasting room provides visitors with an immersive experience, allowing them to sample the castle's exquisite wines while surrounded by the castle's medieval ambiance.