Caves Cálem, established in 1859, is one of the most emblematic port wine cellars in Vila Nova de Gaia, Portugal. Visitors can explore the rich history of port wine production through guided tours that provide insights into the aging process of this unique beverage. The tours often culminate in a tasting session, where guests can sample various types of port wine, enhancing their understanding of the flavors and complexities involved. The cellar also features a museum and an interactive exhibit, which delve into the Douro Valley's winemaking tradition and the cellar's storied past. Caves Cálem is not only a significant cultural landmark but also a testament to the craftsmanship and tradition of Portuguese winemaking.