The most interesting place I've been to thanks to work would have to be India. I was there for 14 days and I remember how gorgeous the colours and culture there was. In particular, we went up this mountain and the path was quite treacherous. People have died on that road because there are no dividers whatsoever. Your chances of making it up (and down) alive was 50-50 and my heart was beating so fast, but the minute I saw the view from up there, my fear disappeared. And then, I met this 104-year-old-man who lives there. He cried upon my visit. I took a portrait of him and that has been the most memorable photo I've taken to date because I too was just as touched!