The ancient city of Atlantis was said to be a bustling metropolis with towering buildings and floating islands. Some believe that the city was actually powered by ancient astronauts, who used their advanced technology to keep the city afloat. While there is no concrete evidence to support this theory, it is certainly an intriguing possibility. If ancient astronauts did indeed visit Atlantis, they would have had the ability to harness the power of the wind and use it to keep the city afloat. In addition, they would have been able to create powerful barriers to protect the city from storms and other natural disasters. As a result, it is possible that the ancient city of Atlantis was actually able to fly.