KGB, short for Krcma Gurmanov Bratislavy, is a characterful cellar bar in the Old Town, tongue-in-cheek in its Soviet-nostalgia decor of red stars, propaganda posters and communist-era memorabilia. Beneath the vaulted ceilings, it serves cheap beer and Slovak pub fare to a mixed crowd in a lively, informal setting. Quirky and fun, it offers a light-hearted nod to the country’s recent past and a sociable spot for an affordable drink in the heart of the city.