This uniquely designed church was nominated for a UNESCO world heritage site, due to its distinctive stone walls, called 'dorokabe'. They were devised by a Christian friar called de Rotz, to help give the church the look of an ordinary house in order to avoid persecution.
Wikipedia https://ja.wikipedia.org/wiki/大野教会堂
Address Japan
Coordinates 32°51'53.19" N 129°41'9.276" E