Châteauneuf-du-Pape holds the distinction of being France's first Appellation d'Origine Contrôlée, codified in 1936 by Baron Le Roy de Boiseaumarié after phylloxera and fraudulent labeling nearly destroyed the region's reputation. The village sits on a plateau strewn with galets roulés — smooth quartzite stones deposited by Alpine glaciers during the Quaternary period — that absorb heat by day and radiate it back to the vines at night, extending the ripening season and concentrating sugars in thirteen permitted grape varieties. The ruined papal castle, built by Pope John XXII in the 14th century as a summer retreat from Avignon's heat, overlooks 3,200 hectares of vines that produce wines reaching 15% alcohol naturally, without chaptalization. Today the appellation supports 320 independent producers, from fifth-generation family domains to forward-thinking cooperatives experimenting with concrete eggs and amphora aging. The village itself, rebuilt after Allied bombardment in August 1944 destroyed 90% of its medieval core, remains anchored by the Place de la Fontaine and the Musée du Vin, housed in the former cellars of Père Anselme. Visitors walk cobblestone lanes lined with tasting rooms where winemakers pour vertical flights dating back three decades, explaining how 2003's heatwave or 2016's perfect ripening conditions shaped the blend of Grenache, Syrah, and Mourvèdre in the glass. The galets themselves define the appellation's identity. These stones, some weighing five kilograms, forced viticulturists to develop specialized ploughs and hand-harvesting techniques that persist today. Domaine du Vieux Télégraphe, named for Claude Chappe's optical telegraph tower that once crowned the La Crau plateau, cultivates 70-year-old Grenache vines whose roots penetrate three meters through the stone layer into clay subsoils, accessing moisture even in drought years. The village's 2,100 residents maintain 14 tasting cellars open to the public, each offering a distinct interpretation of terroir — from the sandy northeast parcels producing elegant early-drinking wines to the rocky southern slopes yielding structured bottles that cellar for 20 years. Châteauneuf-du-Pape wine tour from Avignon options typically include transfers, guided cellar visits, and multi-domain tastings that trace the appellation's stylistic range. The village remains accessible year-round, though autumn harvest weeks and the August Fête de la Véraison draw crowds to witness grape sugars peak and vintners assess the coming vintage.