The United States of America, primarily in North America, is a federal republic composed of fifty states, numerous territories, and federal districts. Its diverse terrain includes majestic mountains like the Rockies and the Sierra Nevada, vast plains stretching across the Midwest, iconic deserts such as the Grand Canyon in Arizona, and scenic coastlines along the Atlantic and Pacific Oceans. The contiguous 48 states, positioned in the continent's heart, feature famous landmarks like the Statue of Liberty in New York, the Golden Gate Bridge in San Francisco, and the breathtaking Yellowstone National Park in Wyoming. Known for its cultural richness and diversity, the USA attracts visitors with its vibrant cities like NYC, Los Angeles, and Las Vegas and its natural wonders like the Grand Canyon, Yellowstone, and the Everglades in Florida. Economically robust, the United States leads the world in GDP, driven by advanced industries, extensive agricultural production, and abundant natural resources. Geographically, its central region spans from the Gulf of Mexico to the rugged Canadian Shield, offering a blend of sedimentary and crystalline geological formations that intrigue and inspire visitors from around the globe.