City clusters are groups of cities that are located close to each other and often share economic, cultural, and social connections. These clusters can create a vibrant environment where businesses thrive, as companies benefit from being near each other. For example, the San Francisco Bay Area is a well-known city cluster that includes San Francisco, Oakland, and San Jose, fostering innovation and collaboration in technology. In city clusters, residents may enjoy a rich variety of services, entertainment, and job opportunities. The proximity of cities allows for easier commuting and access to amenities, enhancing the quality of life. Additionally, city clusters can promote regional development, attracting investments and talent to the area.