4. Castello di Amorosa in the Napa Valley, California
This place is pure heaven for all wine lovers and Castello di Amorosa built in the style of a 13th century Tuscan castle is like a cherry on the top. The castle was constructed by Dario Sattui the owner of two successful Napa Valley wineries.
The property is open throughout the year and it hosts many wine tasting events and tours. Besides the castle the Napa Walley Wine Train is also a must-see attraction.