Suzuka Barrier - Credit: Wikimedia Commons
Suzuka Barrier - Credit: Wikimedia Commons
The was a security checkpoint established during the Nara period on the ancient Tōkaidō highway connecting the capitals of Heijō-kyō and Heian-kyō with the eastern provinces of Japan. Along with in what is now Tsuruga, Fukui and in what is now Sekigahara, Gifu, it was one of the three ancient barriers controlling ingress into the Kinai region from the east. In 1921, the ruins of the Suzuka Barrier was recognized as a National Historic Site Read more on Wikipedia
Source: en.wikipedia.org