Are there secrets of extraterrestrial civilizations hidden on the Moon? Throughout history, various mysterious legends about the Moon have emerged. In the late 19th century, dome-shaped objects on the Moon caught the attention of astronomers. In the 1960s, unidentified flying objects and strange structures discovered on the lunar surface fueled even more speculation. During the United States' Apollo moon landing program, astronauts encountered unidentified flying objects multiple times and recorded many inexplicable phenomena. Is there a lost civilization on the Moon? These unanswered questions continue to intrigue countless scientists and explorers.