Geographical region with the largest number of saltwater lakes: Qinghai-Tibet Plateau.

The city with richest resources of solar energy: Lhasa.

The area with the lowest average annual temperature in China: northern Tibet. It is winter there all year round.

The area with the lowest temperature in summer in China: Northern Tibetan Plateau.

World's largest glacier: Qinghai-Tibetan Plateau glacier. Its water reserve is equal to the total annual runoff of 75 Yellow Rivers. The thickest part of the glacier is 1,000-1,200 meters.

World's highest altitude coalmine: Moincer Coalmine.

World's longest epic poem: King Gesar, one of the three most famous epic poems of China's ethnic minorities.

The first picture scroll depicting exchanges between China's ethnic groups: Sedan Chair by Yan Liping, a Tang Dynasty painter. It shows Tang Emperor Taizong meeting the Tubo Kingdom envoy who came to take Princess Wencheng to Tibet.

The highest altitude palace in the world: Potala Place in Lhasa.

The highest altitude city in China: Lhasa, 3,650 meters above sea level.

The highest altitude monastery in the world: Rongbo Monastery in Tingri County, 5,100 meters above sea level.

The highest altitude ruins of an ancient kingdom in the world: the site of Guge Kingdom.

(China.org.cn)