What are two examples of a megalopolis?

Two examples of a megalopolis are the Northeastern United States, often referred to as the BosWash corridor, which stretches from Boston to Washington, D.C., and the Tokyo-Yokohama area in Japan. These regions are characterized by high population density and extensive urbanization, with cities and suburbs closely interconnected. They serve as significant economic and cultural hubs, influencing both national and global dynamics.