Vines and wines dominate Napa Valley, but here, the good life doesn’t stop at the glass. Sure, you can sip your way through world-class Cabs and Sauvignon Blancs at wineries with barn, castle, and art gallery tasting rooms. But you can also eat fancy picnic spreads and Michelin-starred meals, relax at a mineral spring spa, float in a hot air balloon, and stroll buzzy Main Streets in the valley towns of Napa, Yountville, St. Helena, and Calistoga.