Debbie B's Calistoga, CA, USA
Old Faithful Geyser of California
1299 Tubbs Ln
Not much to look at other than the geysers but I think everyone should see it if you are in the area...
Castello di Amorosa
4045 Saint Helena Hwy
This is one amazing place and a must see if you are in the area. Take the full tour of the tunnels.....