Serengeti National Park, Tanzania

McGrath, Alaska

I took this photo when I was flying over Alaska, says Jijian Fan, who submitted it to the 2015 Traveler Photo Contest. The frozen river channel looks magnificent from the altitude of 38,000 feet. While it might be too dangerous (for amateurs like me) to take a closer look at these [natural wonders], let's just take a bird's-eye view – even from a Boeing 747!

Kumamoto, Japan

Li River, China