It's a tiny region, and it has no classification system. But the wines produced from Pomerol can be sensuous and life-changing. Here lies Chateau Pétrus, one of the most expensive and sought-after wines of the world – many vintages commanding prices higher than the first-growth chateaux of the Médoc. The area is all vines, with no real town center, just roads connecting the lands and small, farmhouse style chateaux.