Good detective work, I used tineye and a lot of korean sites came up, and I know that there are a lot of Christians there (30% of the pop or so) so it seemed to fit This reminds me of a mountain me and my dad climbed when I was 7 or so, it took us the entire day to get up there and get back down. At the top was big metal cross, which is dangerous, in case there are storms. There are also very steep drops everywhere. One of the coolest Dad-son experiences I remember from my childhood! Can't find too many overly cool shots of it, so putting in spoiler tags Spoiler : I never really thought about it, but maybe this is a big reason why the mountains are such a big draw for me.