這座神秘的國定古蹟始建於1919年，當時是日本海軍無線電訊所，後來成為中華民國之下的政治犯偵審場所，隨後成為「白色恐怖」時期的集中營。
它包括一個令人不安的牆上帶有軟墊的單獨禁閉碉堡。
Built in 1919, this mysterious national relic was a Japanese naval radio station that later became an interrogation facility of political prisoners under the Republic of China, and then a disciplinary camp during the White Terror.
It includes an unnerving solitary confinement blockhouse that has padded walls.
