The 16 blocks that make up San Diego’s Gaslamp Quarter are allow visitors to step back in time to the city’s original 19th Century architecture and style. Once a seedy part of town filled with speakeasies and brothels, today the area is a lively, historic district filled with restaurants and boutiques. At night, the area becomes popular with the singles crowd who hit the night clubs in the district, so visit before it gets too late to see the child-friendly version.