From the rare truffles of the Drôme to the vineyards of Beaujolais, the Rhone-Alps reveal the treasures of French cuisine. Gastronomic pleasures are complemented by the lush countryside, filled with fields of lavender. UNESCO-designated Lyon has first-century Roman ruins and the 19th-century Basilica of Fourvière. Forts and castles dot the landscape around Grenoble. Work off excess calories on the slopes of Chamonix and Megève. Visit during fall to take advantage of the grape harvest and many festivals.