Art enthusiasts and collectors should save time during their Napa Valley getaway to visit Ca'Toga Art Gallery. Located in downtown Calistoga, along the main drag of Lincoln Avenue, the gallery is set back a bit off the street, so it's easy to walk right by if you don't know where you are going. Step inside and it's obvious it's not your typical vacation town art gallery. Owned by artist Carlo Marchiori, the barrel-vault ceiling has been turned into an enormous canvas, showcasing the Ptolemaic Constellations. Once you finish gazing above, take time to look down to your feet. The terrazzo floor is a chart of the pre-Copernicus' universe. The gallery features one-of-a-kind paintings, ceramics and more. The gallery is closed Tuesdays and Wednesdays.