Looking for the shooting location of win7 default wallpaper (Chinese theme)

Win7 comes with six wallpapers in the Chinese theme, the Great Wall, Guilin landscape...

CN-wp1.jpg: Scenery of the Li River in Guilin, Guangxi, China

CN-wp2.jpg: The Great Wall of China

(I have never been there, but the picture shows the golden Great Wall in the snow. Could it be the Golden Great Wall)

CN-wp3.jpg: Huangshan Mountain in the Snow in Anhui, China

(Such mountains, rocks, and pine trees, I can’t think of such scenery anywhere else except Huangshan...)

CN-wp4.jpg: China Longsheng Longji Rice Terraces in Guilin, Guangxi

(I wasn’t sure which terrace it was at first. I checked “China’s Top Ten Rice Terraces” on Baidu and found several photos of Longji Rice Terraces that were similar to this one)

< p>CN-wp5.jpg: Yalong Bay Beach, Hainan Island

CN-wp6.jpg: Marco Polo Bridge, Beijing, China