Eguren Ugarte

Located on a 143yr-old vineyard at the base of a mountain, Eguren Ugarte boasts more than a mile of hand-dug tunnels that -- in addition to making Andy Dufresne proud -- are stocked with casks of aging wine you can try. Coolest stalagmite/ stalactite/ interesting formation inside: Definitely the "txokos" (a Basque word pronounced "cho-kos"): carved-out nooks that can be reserved by wine club members for tastings, full meals, and other occasions. Drink of choice: Yea, um, you're going to want to go with some wine. Rioja is the drink of choice here -- try the Anastasio, a velvety 100-percent Tempranillo that bursts with ripe fruit.