Kawagoe Castle川越城

Kawagoe Castle川越城 - Credit: Wikimedia Commons

is a flatland Japanese castle in the city of Kawagoe, in Japan's Saitama Prefecture. It is the closest castle to Tokyo to be accessible to visitors, as Edo castle is now the Imperial palace, and largely inaccessible. Read more on Wikipedia

type: military installation
date from: 1457

Source: en.wikipedia.org