| 1．Goryōkaku |
| Goryōkaku (五稜郭, lit. 'five-point fort') is a star fort in the Japanese city of Hakodate on the island of Hokkaido.[1][2] The fortress was completed in 1866. It was the main headquarters of the short-lived Republic of Ezo. |
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| 2．Shinoridate |
| The site of Shinoridate (志苔館跡, Shinoridate ato) in Hakodate, Hokkaidō, Japan, is that once occupied by the Shinori Fort or Fortified Residence (as denoted by the tate or date ending). This was the easternmost of the so-called "Twelve Garrisons of Southern Hokkaido", built on the Oshima Peninsula by the Wajin from the fourteenth century.[1][2] The site was designated a National Historic Site in 1934 and is one of the Japan Castle Foundation's Continued Top 100 Japanese Castles.[3][4] |
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| 3．Shiryōkaku |
| Shiryōkaku (四稜郭) (literally, "four-point fort") is a fort in the city of Hakodate in southern Hokkaidō, Japan. It was constructed in April 1869, during the Battle of Hakodate, three kilometres to the northeast of Goryōkaku by two hundred soldiers of the former Tokugawa shogunate and a hundred local villagers, likely under the direction of Ōtori Keisuke.[1] Shiryōkaku has four bastions , and is sometimes known as the "butterfly fort" as opposed to the "star fort".[1] |
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| 4．Benten Daiba |
| Benten Daiba (弁天台場) was a key fortress of the Republic of Ezo in 1868–1869. It was located at the entrance of the bay of Hakodate, in the northern island of Hokkaidō, Japan. Benten Daiba was built by the Japanese architect Takeda Ayasaburō on the site formerly occupied by a shrine to Benten, the goddess of fortune. Much of the remnants of the famous Shinsengumi fought their last battle and surrendered there. |
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