This structure, called the Georgetown Castle Gatehouse, was built by the Army (c. 1901) in the shape of a castle.
ðɪs stɹˈʌktʃɚ, kˈɔːld ðə dʒˈɔːɹdʒtaʊn kˈæsəl ɡˈeɪthaʊs, wʌz bˈɪlt baɪ ðɪ ˈɑːɹmi sˈiː. nˈaɪntiːnhˈʌndɹɪd wˈʌn ɪnðə ʃˈeɪp əvə kˈæsəl.