Show Your Badge and receive $5 off purchase. Offer excludes alcohol. Grimaldi’s pays homage to more than 100 years of pizza-making traditions and the tantalizing aroma of pizza and calzones baked to perfection in the signature coal burning oven. Why coal-fired ovens? It gives Grimaldi’s pizza and calzones a unique flavor and a crisp crust that is just not possible from gas, convection or wood burning ovens. Try it! This restaurant is located on Grapevine Visitors Shuttle route stop O.