China Found Man Made Caves That Scientists And History Can’t Explain

The Longyou Grottoes (24 or more)
Covering 30,000 square meters
Located near the village of Shiyan Beicun in Zhejiang province, China.
Discovered in 1992 by a local villager
Possibly 2000 plus years old


Carved into solid siltstone, each grotto descends around 30 meters underground and contains stone rooms, bridges, gutters, and pools. The quantity of rock that would have been removed in the overall excavation of the grottoes is estimated to be nearly 1,000,000 cubic meters.


An extensive and rare ancient underground world considered in China as ‘the ninth wonder of the ancient world’. One of the largest underground excavations of ancient times.


Scientists from around the world in the fields of archaeology, architecture, engineering, and geology have absolutely no idea how they were built, by whom, and why.


Where this gets strange:

  • No traces of construction or mention in any historical records.
  • Excavation involved almost a million cubic meters of stone but there is no evidence of where it went.
  • The caves have 100%  structural integrity with zero damage over time.
  • No evidence of any lamps or soot from torches in what would have been pitch black caves.
  • They were not connected to each other.
  • Marks on the walls resemble modern-day high-tech machine dig marks.
Categories: Hidden HistoryTags:


  1. There are STILL many mysteries of this world, AND the history that goes with it.

    Liked by 3 people

  2. Excellent article, this is one of the many things in our world that I had heard nothing of before this article. I enjoyed the story and the pictures. Thank you for taking of your time to post them. I am going to reblog this article for you.

    Liked by 2 people

  3. Yet more evidence – no, PROOF – of advanced ancient technology (the lack of soot/smoke marks being because of electric lighting). I highly recommend reading “Dead Men’s Secrets” by Jonathan Gray.

    Liked by 1 person

  4. It’s not so hard to image a community of people making these over a 25 year period. Impressive, but see what one man did alone in the same amount of time. Probably not that mysterious

    Liked by 1 person

    • Btw, this is an apples to apples comparisons as siltstone and sandstone have the same hardness at 7/10 on the hardness scale.

      Liked by 1 person

    • Fantastic information Jim!!!!

      It’s just so wrong that he’s not getting any money for all that work! I may post this on my site, thanks!!!

      I think the caves in China are mysterous because of two reasons they pointed out in the video. The lack of light at the depth of the caves (no electricity back then and there were no indications of burning light fixtures like we’ve seen elswere.

      The second is the strange machine like markings which indicated they were not made with hand tools but some rather large machine which they should’t have had back then.

      I’t mostly mysterious because it forces a change in our perception of technology and ancient man.

      Liked by 1 person

      • Here’s a better video, and you can see the man made “machine marks” in the video as well.

        Liked by 1 person

        • I think this is what they are talking about. The first is not uniform and you can tell it’s hand made.

          The second is the same pattern consistently throughout the cave in large opening cuts to match the size of the machine used. Unlike the more narrow inconsistent tool marks by the guy we are looking at.

          They could still be wrong but I think they have a good point. It’s somewhat convinceing to me but I’m on the line with it.

          Liked by 1 person

          • Part of the problem with our machine world is we now even lack the imagination and effort to even comprehend what a man can do with a shovel. From the miles of carvings and millions of tonnes of stone at Angkor Wat, to the terra-cotta army and many other precisely “hand carved” masterpieces around the world, people were just living in a culture of artistry. This is what they did.


            • That’s very possible but not confirmed, it could be purely religious based excavating.

              Some even think it may be a form of power in design, this is to say that there is some kind of magnetic energy that can be funneled with a specific design.

              For me I believe it was cruel inhuman use of labor for the benefit of the rich to have a wonder they could claim as being special. I seriously doubt it was artistic passion. Human slavery to honor the rich. Just my opinion


              • That comment is the antithesis of art. What if Ra Paulette had forty like-minded helpers in a small community? At just 3 yards per day of digging over 20 years at 300 days of digging you have your million yards. No slavery required.
                My pottery teacher has a small studio where she has eked our a living for 50 years. Not for the money, but she just loves it. A lot like Ra.

                Liked by 1 person

                • I’m thinking more of motive than capability. History keeps telling us about past wonders that were built for vanity or communal gatherings (sports, religion, etc).

                  This location in China seems a bit grand like a temple or grand hall.

                  But I could be wrong.


                  • If you look back to all the caves that have been discovered that we know had a religious significance, nag hammadi, qmran, Dead Sea and the catacombs of Egypt, even in the basements and catacombs of many Catholic infrastructures, there is always something hidden (or sometimes obvious) of a religious nature. Naturally occurring caves filled with cave art as old as 40,000 years are void of religious depictions. This mans caves he’s making in newmexico are void of religious symbolism other than a spiritual nature in his own journey. If these caves in China are void of any religious artifact or inscription, I would guess they were made to live in, carved out over time by a growing community that spread out over the kilometers from a hub. Living underground has its perks, and as you can see the caves went undiscovered for a very long time. Safety, climate control, privacy, security, and additions were as simple as a little digging. Never underestimate a man with a shovel! Panama taught me that. These caves, one at a time, could be dug in a matter of weeks with a small group of men.

                    Liked by 1 person

  5. I’m curious after looking at the chinese caves, what type of machinery would have fit inside and maneuvered around all those corners and bends? Perhaps a community of sculptures had a string lines and a good eye?

    Liked by 1 person

    • I think they could have made a machine that was human powered to do it but I think the people who made the video think it’s more of a modern machine in ancient times.

      I think both sides are underestimating the power of human ingenuity. I can easily imagine a primitive human-powered construct that would do the trick without the need for gas or electricity but devoid of direct human labour. Heck, think flintstones.

      Liked by 1 person

  6. This is utterly fascinating… I think we have lost so much information of the past. I’ve never heard of these. Very intriguing.

    Liked by 1 person

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