Hi guys. Today I will talk about the very mysterious Longyou Caves created over 2,000
years ago. There were no historical records until Chinese farmers discovered them in 1992.
I believe these caves were machine-made by an advanced ancient civilization. In this
video I will focus on the cave’s over-sized stairs and their intriguing tool marks.
Located near a village in Zhejiang province, Southern China, lies the Longyou caves - an
extensive and magnificent world. So far 45 caves have been discovered and 36 have been
excavated. It is one of the largest underground excavations, which involved the removal of
almost a million cubic meters of stone, which is about 42% of the volume of The Great Pyramid
of Giza!!!.
Longyou caves is not the only such cave system. There is another site just like Longyou caves,
which is 26 miles away and might be even bigger. These 2 cave systems share the exact same
tool marks with similar characteristics.
Why weren’t these caves found earlier? Let me show you what they look like from the ground
level. This small pond is an entrance to a cave. Pretty good disguise, right? The only
clue that gave it away is the sharply cut pillar here. These caves were filled with
water and stayed hidden for thousands of years, until modern day pumps came along to drain
them.
Some caves at Longyou still have a lot of mud on the bottom as deep as 5-8 meters or
16 to 26 feet. Once all that mud is removed who knows what remains to be found!
Back to our topic. Longyou caves are massive. The average cave
floor area is over 1,000 square meters, which is the size of an American football pitch.
The caves have heights that soar up to 30m or equal to a 10-story building. The total
floor area exceeds 30,000 sm, which is equivalent to 30 American football pitches or 5 FIFA
soccer fields!! Truly an unbelievable construction. And, there is no evidence of where the huge
amount of original stone went or signs of the workers dwellings that went into this
grand-scale excavation.
All caves have maintained their structural integrity for at least 2000 years. None are
interconnected. Here is a diagram showing what a cave looks like. With the help of modern
equipment, we learned that the overall construction is extremely accurate and well planned; the
caves are adjacent to and within close proximity to each other. Some caves are placed on top
of one another and many caves are basically next door. The thickness of neighboring walls
are consistent, however, it varies from wall to wall. The thinnest walls are half a meter
or 1.6 feet thick. I am showing a 3d cave sample. How did the builders achieve this
continuous precision over 2000 years ago? How did ancient people manage to do this and
for what purpose did these intricate caves serve? What were these sunken rectangular
holes used for? The set up of these caves reveal an advanced engineering knowledge similar
to today’s remote sensing technology, which can see through densely forested regions.
Pretty amazing!
Here I want to clarify two things: first, the reliefs on the walls and pillars are not
original; the local people unfortunately made them of cement as “tourist attractions”
after 1992. It is a pity that they damaged the original finish. Also, the arched tunnels
that connect the caves are sadly new additions made by the locals for tourists. The appearance
of “tool marks” in the tunnels was fabricated by locals to match the original marks.
Experts around the world have been baffled with the complexity and precision of the Longyou
Caves, prompting numerous questions that no one has been able to answer. Who built the
Longyou Caves? What kind of technology was employed during their construction? How did
the builders remove and transport tons of carved-out rock? A consensus is that whomever
constructed Longyou caves had advanced knowledge on par with today’s technology.
One of the most interesting and challenging questions is how these caves were originally
constructed. Today I give my hypothesis focusing on two subjects: the tool marks and the over-sized
stairs.
Each cave is covered from floor to ceiling with the same intriguing tool marks: a series
of parallel bands about 60 cm or 2’ wide. This scale of work would have required immense
manpower and likely decades to create.
In my last video, I explained why it‘s implausible to believe these uniformed, large-scale stone
works were made by hand tools such as chisels and pickaxes. Ancient sites such as Yangshan,
Baalbeck and Petra, all show thousands of year old tool marks that match modern-day
machine marks. Click here to watch the tool mark video.
Now I want to compare the Longyou marks with today’s machine marks.
Here I compare a 19th - 20th century salt mine in Ukraine, with Longyou caves. See how
similar the layers of parallel marks are? Here is another comparison of the same salt
mine.
Now I compare tool marks created by modern rotary drum cutters with markings on Longyou
caves. The tool marks are fairly identical. The marks created by the mining machines are
very close to the tool marks we see in the Longyou caves. Also, Longyou caves’ tool
marks share similar traits with other ancient sites in both uniformity and scale of construction.
These precise marks could not have been done by hand tools and clearly resemble machine
marks. Even if you painted these marks on the walls it wouldn’t be as consistent,
let alone carving them by hand on sandstone. Here is a video showing how a mining machine
works. We can see the finished areas have very similar marks to Longyou caves.
I believe Longyou caves are another example of ancient stonework constructed by machines.
Now let’s discuss the stairs.
To enter the caves, we need to go through a square opening about 20 sm or 215 sf from
the ground. Between the opening and the top of the stair landing, there is a big elevation
drop about 4-5m or 13’-16’. It would be a very difficult entry for a human to use.
Maybe wood or metal ladders were once used but no such evidence was found.
The original cave stairs are also not the same as today’s stairs we use. The cave
stairs are oversized with an average rise of 60cm or 2’. That is 3 1/2 times higher
than today’s regular step rise. The steps are not flat but sloped and fairly steep like
a combination of current day stairs with slopes. Maybe they were built this way to help excavating
the rocks?
Since I am proposing that the caves were constructed with machines, the cave entries and stairs
were possibly built for not only people but also their large excavation machinery.
Could the oversized stairs mean that the ancient people, who constructed and used the Longyou
caves, were 3 times taller than today’s average adults? Maybe in a future video I
might explore this theory or fantasy on whether 5 m or 16’ ancient giants once existed.
We cannot answer the question how these incredible caves were constructed if we limit ourselves
to the assumption they were made by hand tools and manual labor 2000 yrs ago. If we look
further than 6000 years back, there remains the real possibility that advanced civilizations
existed and used technology lost to time. We should open our minds and contemplate that
prehistory civilizations used sophisticated machinery to build these unexplained grand
sites, such as Longyou caves and Yangshan monument. By expanding our thought process,
we adapt our way of thinking and break the chains that prevent us from decoding what
technology could have existed in the distant past. Often mysteries remain shrouded in clouds
of ignorance and fear because investigators refuse to think outside the box.
In my next video, I will discuss other mysterious topics about Longyou Caves, such as why there
are deep sunken holes inside. If you have any insights, please leave a comment. I would
love to hear from you.
If you like my video, please give me a thumbs up and subscribe. This is Curious Being, I
am Tina. Thanks for watching and see you next time!