1. The mysterious Longyou Grottoes were built by aliens. Longyou Grottoes are not natural caves, and the structure and structure in the caves are completely different from those in natural caves. Longyou Grottoes are not produced by modern science and technology. Generally, modern people will use straight-line excavation for safety and beauty, but the formation of this cave is completely different. Longyou Grottoes were not built by ancient people, because the ancient people's productive labor force was low and they were not ordinary man-made. The monarch has the ability to create such a large-scale organization, but during the ancient war, there was really no need to waste people and money to create useless underground caves. So experts believe that it is the trace left by aliens on the earth a long time ago.
Second, the use of the mysterious Longyou Grottoes Experts have several opinions on the use of Longyou Grottoes. The first one is: this is the tomb, palace or royal storage room of the ancient royal family. However, as a palace, there is no place to live and rest. If there are no funerary objects in the mausoleum, this statement will be overturned. The second type is: it is an abandoned cave left by ancient stone miners, but because of its fine workmanship, the stones in the cave are easy to weather and fall over, which is not suitable for industrial stone mines; The third kind is that the ancient kings dug underground grottoes for revenge and were afraid of being discovered, preparing for war. However, this statement is not accurate, because it takes a long time to dig such a large-scale grottoes. If you have time to dig a hole, it is better to use this time for training. And there's only one exit. If someone finds out you're blocking the exit, it's over. So everyone thinks that the fourth statement is the most reliable, which was built by aliens who came to earth thousands of years ago.
There are too many unsolved mysteries about Longyou Grottoes. Let's use the wings of imagination to boldly quote a large number of super-civilized relics left by aliens on the earth thousands of years ago. Like the pyramids in Egypt, Stonehenge in Britain and so on. It has been suggested that the mystery of Longyou Grottoes should not be solved, because only the unsolved grottoes have mysterious beauty.