Strange phenomenon in the sky of New York city [video]

Some time ago we heard about a floating city that appeared in the sky over China. But there were other similar…
phenomena and in other cities such as California and the United Kingdom.
Recently, a new similar phenomenon occurred in New York city. Above the clouds appeared strange figures that looked like people who seemed like they were watching the city from above. These images have become viral.
Is it actually the mirages, optical illusions, or other natural phenomena…

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