3 Great Louisville Hole-in-the-Wall Barbecue Joints. Nestled within the heart of Louisville, Kentucky, are hidden culinary treasures waiting to be uncovered – three great Louisville hole-in-the-wall barbecue joints that beckon barbecue aficionados and food enthusiasts alike. These Louisville hole-in-the-wall barbecue joints offer a glimpse into the rich and vibrant barbecue culture that permeates the city, showcasing the authenticity and uniqueness that define this Southern culinary tradition.