Chapultepec Castle is a historic castle located on a hill in Chapultepec Park, Mexico City. Originally built as a royal residence in the late 18th century, it later served as a military academy and the official residence of several Mexican presidents. The castle features stunning architecture and beautiful gardens, making it a popular tourist destination. Today, Chapultepec Castle houses the National Museum of History, showcasing artifacts and exhibits related to Mexico's past. Visitors can explore its grand halls, admire panoramic views of the city, and learn about significant events in Mexican history, including the Mexican-American War.