If you come to Bordeaux, you should not miss one of the tours to the 'Chateaux'. Usually these organized excursions visit a couple of 'Chateaux'. In each of the 'Chateaux', they take visitors to the vineyards, to the barrels room and to a tasting hall. They will explain you how the grapes are harvested, how they store the grapes and how they bottle the wine. Finally they will let you taste some of the wines produced in the property. And last, they will let you buy some of the bottles you tasted.