A wine cellar is a dedicated space designed for the storage and aging of wine. These cellars maintain optimal conditions, including temperature, humidity, and light levels, to preserve the quality of the wine. Typically, they are built underground or in cool areas of a home to provide a stable environment. Wine cellars can vary in size and style, from small closets to large, elaborate rooms. They often feature racks or shelves to hold bottles securely. Some wine cellars also include climate control systems to ensure the ideal conditions for different types of wine, enhancing their flavor and longevity.