You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allimages>
      <img name="Genseki_map.jpg" timestamp="2020-04-29T00:45:28Z" user="Miya 隆吉" url="https://tonden.org/wiki/images/2/22/Genseki_map.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Genseki_map.jpg" ns="6" title="ファイル:Genseki map.jpg" />
      <img name="Kisyo_m28.jpeg" timestamp="2020-04-28T10:24:50Z" user="Miya 隆吉" url="https://tonden.org/wiki/images/3/37/Kisyo_m28.jpeg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Kisyo_m28.jpeg" ns="6" title="ファイル:Kisyo m28.jpeg" />
      <img name="Koyaura.jpeg" timestamp="2019-10-29T03:55:15Z" user="Hiro kaji" url="https://tonden.org/wiki/images/a/a3/Koyaura.jpeg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Koyaura.jpeg" ns="6" title="ファイル:Koyaura.jpeg" />
      <img name="Wada_hifukuko.jpg" timestamp="2015-08-10T00:56:00Z" user="Hiro kaji" url="https://tonden.org/wiki/images/3/35/Wada_hifukuko.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Wada_hifukuko.jpg" ns="6" title="ファイル:Wada hifukuko.jpg" />
      <img name="Wanisi_kayakuko.jpg" timestamp="2015-08-10T00:54:21Z" user="Hiro kaji" url="https://tonden.org/wiki/images/b/b5/Wanisi_kayakuko.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Wanisi_kayakuko.jpg" ns="6" title="ファイル:Wanisi kayakuko.jpg" />
      <img name="Ebetu_kayakuko.jpg" timestamp="2015-08-10T00:52:27Z" user="Hiro kaji" url="https://tonden.org/wiki/images/7/7c/Ebetu_kayakuko.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Ebetu_kayakuko.jpg" ns="6" title="ファイル:Ebetu kayakuko.jpg" />
      <img name="Nopporo_tyutaihonbu.jpg" timestamp="2015-08-10T00:50:11Z" user="Hiro kaji" url="https://tonden.org/wiki/images/d/d4/Nopporo_tyutaihonbu.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Nopporo_tyutaihonbu.jpg" ns="6" title="ファイル:Nopporo tyutaihonbu.jpg" />
      <img name="Tomita_teiken.jpg" timestamp="2015-07-15T23:51:09Z" user="Hiro kaji" url="https://tonden.org/wiki/images/8/88/Tomita_teiken.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Tomita_teiken.jpg" ns="6" title="ファイル:Tomita teiken.jpg" />
      <img name="Misawa_nikki.jpg" timestamp="2015-07-15T06:18:53Z" user="Hiro kaji" url="https://tonden.org/wiki/images/1/19/Misawa_nikki.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Misawa_nikki.jpg" ns="6" title="ファイル:Misawa nikki.jpg" />
      <img name="Sinkotoni_haitizu.jpg" timestamp="2015-07-12T08:38:54Z" user="Hiro kaji" url="https://tonden.org/wiki/images/f/f9/Sinkotoni_haitizu.jpg" descriptionurl="https://tonden.org/wiki/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Sinkotoni_haitizu.jpg" ns="6" title="ファイル:Sinkotoni haitizu.jpg" />
    </allimages>
  </query>
  <query-continue>
    <allimages aistart="2014-11-25T02:31:33Z" />
  </query-continue>
</api>