They make some of California's most expensive wine, but the reason to stop here on a Napa trip isn't only what's in the glass: the building is worth seeing in itself. Set on a rise, symmetrical, designed almost like a temple. Tastings are pricey, so it's worth budgeting for.

Opus One Winery
Worth the visit for the building alone
Good to know
- Tastings need booking; walk-ins usually aren't possible.
- I'd suggest going up to the terrace — that's where the vineyard view is.
Photo: No machine-readable author provided. Cszmurlo assumed (based on copyright claims). · CC BY 2.5