File photo taken on July 10, 2012 shows tourists waiting to visit the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. Statistics showed Tibet received 10.584 million tourists in 2012 and earned a revenue of more than 12.65 billion RMB yuan (about 2 billion U.S. dollars), rising by 21.7 percent and 30.3 percent respectively year on year. [Xinhua/Purbu Zhaxi]