Ciudad de México, the capital of Mexico, is one of the largest cities in the world. It is located in the Valley of Mexico, surrounded by mountains and volcanoes. The city has a rich history, with ancient ruins like Teotihuacan and Tenochtitlán reflecting its indigenous heritage. Today, Ciudad de México is known for its vibrant culture, diverse neighborhoods, and numerous museums, including the famous Museo del Prado. The city is also a major economic and political center, playing a crucial role in Latin America. Its bustling streets are filled with markets, restaurants, and historic landmarks.