A real running high

Participants in the 2010 Lhasa International Half Marathon Challenge run in front of the Potala Palace on Sunday in Lhasa, capital of the Tibet autonomous region, which is 3,670 meters above sea level.Participants in the 2010 Lhasa International Half Marathon Challenge run in Lhasa, capital of the Tibet autonomous region, on Sept 12, 2010.Participants in the 2010 Lhasa International Half Marathon