The largest city in Saudi Arabia is Riyadh. It is the country's capital and serves as its political, economic, and cultural center. Riyadh has experienced rapid growth over the past few decades, transforming from a modest desert town into a sprawling metropolis with a diverse population. The city features modern architecture, extensive infrastructure, and a variety of educational and healthcare facilities. Its economy is primarily driven by oil, but Riyadh is also diversifying into other sectors, including finance, technology, and tourism, aiming to lessen its dependence on oil revenues.