Greek kitchens in ancient times were designed to be functional and efficient, and some of them featured built-in wine racks. These kitchens were usually small and had a central hearth for cooking. The built-in wine racks were often made of marble or wood and were used to store and display wine. Wine was an essential part of Greek culture, and having a built-in wine rack in the kitchen was a way to show hospitality to guests and enjoy wine during meals.