Introduction to the National Museum of Mongolian History: The National Museum of Mongolian History is a tourist highlight in Ulaanbaatar. The museum has three floors. The first floor exhibits include Mongolian Stone Age ruins and rock carvings. The second floor collects a large number of national costumes. The third floor focuses on displaying representative collections of Mongolian nomadic culture, such as 12th-century armor and precious Mongolian khans and Correspondence between the Popes.