Vienna

Vienna is the only metropolis in the world that has significant vineyards within the city limits.

An excerpt from the article 48 facts about Vienna

Vines are grown there by about 400 growers on an area of about 700 hectares, with white wine in 80 percent of the area and red wine in 20 percent. Vineyards are planted with rose bushes, which indicate mold infestation earlier than grapevines, and growers can react more quickly.