Karatsu, Saga
Due to its proximity to mainland Asia, Karatsu has long been known as a stopover to Korea and China.Under ritsuryō, the current city area was part of the Hizen Province. In 1591, on the coast of the northern part of the city (formerly the town of Chinzei), Nagoya Castle was constructed. The following year, it became the location from which the Imjin War was launched by Toyotomi Hideyoshi. In the middle of 1593, Terasawa Hirotaka created the Karatsu domain and began governing it. In 1602, replacing Nagoya Castle, Karatsu Castle was constructed in what is now the heart of Karatsu. The tower of Karatsu Castle was built in 1966 .
Gifu Castle
The current version of Gifu Castle is a cement structure that was built in the 1950s, as the previous castle had been destroyed by the firebombings of the surrounding city during World War II. Inside the castle, there are three floors with exhibits representing the castle's past. With maps, weapons, pictures and other artifacts on display, visitors can recreate the story of Gifu Castle. On the top floor of the castle, an observation deck, visitors can enjoy a 360-degree panoramic view of the surrounding area, including the Nagara River and Nagoya. At various points throughout the year, the castle is also open to night viewing, providing an awe-inspiring view of the city. The newly opened Gifu City Tower 43 also provides panoramic views of the city and is open late year-round; however, its views are limited to only a few compass directions.