I took on the challenge to fly from the World's highest airport in Daocheng, China with 4411 meters to the lowest in Atyrau, Kazakhstan, located 22 meters below sea level. It was quite a trip and my ...

Located close to one of Bolivia's major cities, La Paz, El Alto International is the highest international airport in the ...

Planets Venus (top), Jupiter (middle), and Mars (bottom) rise above a mountain peak at Yading reserve in China, 2015. A grand celestial reunion is happening through February: Skywatchers will get ...