The Cosmopolitan, also known as the Cosmo, is a popular vodka-based cocktail. It is made by combining vodka, cranberry juice, triple sec, and lime juice. This vibrant and fruity drink gained popularity in the 1990s and is often associated with cosmopolitan cities and trendy bars. The combination of vodka's neutral taste, the tartness of cranberry juice, the sweetness of triple sec, and the tanginess of lime juice creates a refreshing and balanced cocktail.