Double rainbow appears above Hukou Waterfall on Yellow River

A spectacular double rainbow has graced the sky above the Hukou Waterfall on the Yellow River in Shanxi Province. 　

As China's second largest waterfall, Hukou Waterfall is situated on a section of the river where it narrows like the mouth of a kettle, and the water cascades down more than 20 meters as if being poured from a huge teapot.