San Diego's central business district, also known as Downtown San Diego, is truly the heart of this vibrant city. It's where you'll find a diverse mixture of office buildings, restaurants, shops, and residential areas. The district is known for its bustling nightlife and iconic landmarks like the Gaslamp Quarter, Petco Park, and the San Diego Convention Center. It's a walkable area with excellent public transportation, making it easy to explore. As the economic center of San Diego, it plays a crucial role in the city's economy.