Surrounded by the Chartreuse, Vercors and Belledonne massifs, Grenoble is nearly twenty-one centuries old. And to say that it's pleasant to walk around (in the city as well as in the surroundings) is an understatement: Grenoble is the largest ecological city in France. In the old town, one walks through the lively Place Grenette and Place Saint-André, as well as the countless streets with their superb mansions that criss-cross the district. Of particular interest are the former Parliament Palace, the City Garden, with the Treasure Tower, and l'ancien hôtel de Lesdiguièresthe Collegiate Church of Saint Andrew, the "Bishopric-Cathedral" group (12th-13th centuries), which includes Notre Dame Cathedral, the Church of Saint Hugues, the remains of the Baptistery and the Episcopal Palace. Finally, a little further away, south of the old town, take a look at the Place de Verdun and the prefecture (19th century). On the other side of the Isère river, the Saint-Laurent district is essentially a tourist area. There are the St. Lawrence Gate and the Gate of France, which has become a monument to the city's war dead, the old St. Lawrence Church (13th century), and the current Archaeological Museum. Go to the Bastille fort, on foot or by cable car. Of course, this presentation is only brief, there is so much to discover in this beautiful city (it also has a lot of street art, as shown by its festival), where Stendhal comes from, that a tourist guide about Grenoble will not fail to make you discover.