Black Angel's Bar occupies a Gothic cellar beneath Prague's Old Town Square, drawing inspiration from Alois Krcha, a bartender from the city's First Republic era whose recovered diary and sketches guide the cocktail menu. The space evokes 1920s-30s prohibition aesthetics with low lighting and live piano music, creating an ambiance where time seems suspended. Operating daily from 5 PM to 3 AM, the bar offers three distinct menus: the Alois Krcha Menu, a Dan Brown-inspired cocktail selection referencing the literary thriller, and craft mocktails using premium ingredients.