Updated April 26, 2023 A visit to San Diego would not be complete without a stop in the Gaslamp Quarter. This neighborhood is generally considered 4th, 5th & 6th Ave between Harbor and Broadway in downtown San Diego. The Gaslamp Quarter was originally called New Town in 1869 when it hosted the first port in San Diego. Many brothels and bars were established to cater to the sailors and merchants whose ships landed in the newly dug-out harbor. For a ...