Megacities are extremely large urban areas that have a population of over 10 million people. These bustling cities, like Tokyo and New York, are known for their vibrant cultures, diverse communities, and significant economic activities. They often serve as important hubs for business, technology, and education, attracting people from all over the world. However, megacities also face unique challenges, such as overcrowding, pollution, and inadequate infrastructure. As more people move to these urban centers in search of better opportunities, issues like traffic congestion and housing shortages become more pronounced. Addressing these challenges is crucial for the sustainable growth of megacities like Mumbai and São Paulo.