Mufon case 61696.

Link to original large sized 5312x2988 image:

Witness: "I'm a resident of Vienna in Austria and when I was on the balcony, I saw this huge transparent vehicle floating above the clouds for about two minutes."

"I grabbed my phone (Samsung Galaxy S5) and after I took a photograph of it, the vehicle was gone."
"I've never seen anything like it, it was strange."