I went to Cambodia. In May, Japan has a long vacation. So I traveled to another country every year. This year I went to Cambodia and Singapore. I will write about Cambodia this time. Singapore would write next time. I stayed there for three days. I went to Siem Reap to see Angkor Wat and a lot of ruins. Every ruins are very huge and I was surprised every piece of stones have beautiful cavings. It appears buddha or animals or something. I'm not quite sure. But It was very beautiful. Sadly many of ruins are about to break down. Some stones are fall down to ground. Even such stones on the ground have caving. That must be huge work even now. Ｗhat is more, that every temples are facing exactly South. ( except Angkor Wat. It is facing exactly West.) I put my iPhone on the center of temple. That compass app displayed exactly zero degree. I was very impressed by that precise work. In May, Cambodia is VERY hot. Highest temperature is about 38 celsius. So I can walk not so long distance. But It is enough to understand huge works. And It was very easy to realize that that is amazing.