That’s what these colossal Buddha statues made on me. I hadn’t seen anything like it before. It was our first trip in Asia since we had moved to Taiwan. It was 2008. We went around many of these old, historical temples in Thailand. I think this one in particular was in Sukhothai, a place I always recommend to visit, and where you should definitely rent a bike.
I only know some general things about Buddhism, but according to what I’ve read on the Internet, this Buddha pose is called “Calling The Earth to Witness”.