While visiting Jiuzhaigou (see review)in China, you want to score a few WHS, take a half day to visit this site of the oldest continuously used waterworks in the world. (2300 years)
I hired a car (busese are also available, but it's local Chinese)from Chengdu, the jumping-off point for Jiuzhaigou and Tibet. While there, also cover the museum at Sanxingdui, which features larger-than-life bronze statues and figurines from the lost civilization (3-4,000 years old)discovered accidentally. We are talking about 1.5 meter bronze masks with eye-stalks a la Star Wars.
Also within a day's drive is Dazu and Emei Shan. So by staying in Chengdu, I was able to cover 5 WHS (add Jiuzhaigou and Huanglong) in one week. I will fill in the photos later from my Apple.