Since ancient times, humans have been fascinated by the possibility of life in space. Although nothing conclusive has yet been discovered, there are numerous mysterious places around the world where people claim to have sighted or encountered signs of aliens. From sphinx-shaped rock formations in Romania, to UFO-themed Australian roadstops to a radio telescope in China that listens for intergalactic communications, here are some of the most exciting and mysterious places to search for signs of extraterrestrial life.
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