 Japan is a country full of ancient architecture, still to be explained by modern fields of study, with much of the method of construction indicative of lost knowledge. We have in the past covered a number of these ancient anomalies, yet after receiving a message from one of our viewers, we have yet again been provided with a lead which has resulted in us adding to this long list of ancient wonders. With a smorgasbord of previously unnoticed ancient masonry, which is still in existence at a number of ancient sites throughout the country, many of these sites, thanks to the tremendous efficiency of their original constructors, are still in use to this day. Mostly labeled as castles, these additional discoveries further corroborates a hypothesis we presented nearly two years ago, a posit of a past mega-metropolis, or now lost super-civilization, having once called Japan home. Chris Gorman had previously visited Shuri Castle in Okinawa with his family, and after watching the studies regard masonry on the channel, recalled seeing this same, now lost method of advanced stone building at the ancient site. He stated and I quote, I'm writing to you after watching your video regarding masonry. I recognize that this same masonry was present at Shuri Castle in Okinawa, Japan, which was once made from volcanic rock. Here are some pictures that I took of the castle. Some areas were completely destroyed in the Okinawa assault of World War II, but there are also areas which survived the barrage. I witnessed rock walls and pathways that had mossy lichens, some of which taking upwards of thousands of years to form. Heavy pitting was also present upon the rocks, demonstrating significant erosion I didn't notice until recently, end quote. Thanks to Chris's message, I investigated the site along with a number of surrounding sites and found that not only is Shuri Castle littered with this amazing lost technique of stone building, count of other ancient castles and forts across the country also share these same characteristics. With the same synonymous incline found at Saksawaman, which has shown the walls to have not only been a formidable barrier for invaders, but allow them to also survive natural disasters such as large earthquakes, the castle of Nakagusuku in the villages of Nakagusuku and Kitanakugutsu, also found upon the island of Okinawa in Japan, is only second in size to Shuri and predictably is academically claimed as the work of distant ancestors, falling within currently permitted history. Known as the Gusuku, this title however is similar to that of Priyankin. It is a name given to an unknown group, which is clearly a lost civilization, yet due to the forbidden nature of such investigative endeavors within academic fields, is simply a name which allows academia to dodge any explanation for their origins. Gusuku often refers to the castles or fortresses of the Ryukyu archipelago, which we have now realized are all remnants of a past highly capable, technologically advanced lost civilization. With the origins of which among those who have the courage to study such unexplainable ruins remains a controversial subject, one forbidden by funded institutional individuals from discussing. In the archaeology of the current Okinawa prefecture, the Gusuku period refers to the archaeological period believed to have followed the, quote, mound of shells period, all located in the Ryukyu kingdom, which the channel now strongly believes as a whole is evidence of a past now academically concealed mega metropolis, which were all the work of the same now lost civilization, and were all connected parts of this same settlement. Regardless of their controversial nature, many Gusuku ruins of the Okinawa island are fortunately listed as world heritage sites by UNESCO. Listed under the name of the Gusuku sites and associated cultural properties of Ryukyu kingdom, they are undoubtedly highly compelling.