This astonishing video of a magical castle appearing in the clouds reportedly above Jinan, eastern China, has apparently gone viral on Chinese social media. Skeptics insist it's a Fata Morgana, but we know the truth.
The Fata Morgana phenomenon is named after the Arthurian sorceress Morgan le Fay as her castle was said to hover above the coast of Sicily. Video explanation of the effect below.
And here are more amazing examples from the Boing Boing archives: