A Shinkansen, which means "new trunk line" in Japanese, is a high-speed bullet train operated by Japan Railways (JR). It is a symbol of Japan's technological progress and efficiency, traveling at speeds of up to 320 km/h (200 mph), making it one of the fastest trains in the world. The Shinkansen connects various major cities in Japan, including Tokyo, Osaka, Kyoto, Hiroshima, and Fukuoka, making it a popular mode of transportation for both locals and tourists.