japan megaliths

Ancient Japan’s Mysterious Megaliths: Uncovering Extraterrestrial Connections

4 mins read


In the heart of Japan, near the modern city of Osaka, lies a remarkable site that has intrigued ancient astronaut theorists and researchers for years. Giorgio Tsoukalos, a renowned figure in the field, met with fellow theorist Takahara Mikami in April 2017 to explore the Ishinohoden megalith—a colossal stone monument carved from the mountainside. This enigmatic structure, believed by some to be over sixteen thousand years old, holds the key to an astonishing chapter in Japan’s history.

The Ishinohoden Megalith: A Monument of Legends

Standing in the shadow of the Ishinohoden megalith, Giorgio Tsoukalos was awestruck by its sheer size and grandeur. This massive rock, estimated to weigh a staggering 500 tons, is truly a marvel of ancient engineering. But what sets it apart is the legend that surrounds it. The Ishinohoden megalith is believed to be related to one of the first gods who descended from the heavens to Japan. This deity is said to have traversed the land in a sky ship made of a giant rock, known as the “Amano Iwakuni” or the “Heavenly Rock Ship.”

megaliths in japan

A Sky Ship Made of Stone

The legend paints a vivid picture of a celestial being flying across the Japanese skies in a powerful and indestructible vehicle made of stone. This description raises intriguing questions about the nature of this ancient “ship.” It wasn’t an ordinary aircraft with wings; instead, it resembled a formidable stone ship. The choice of an incredibly hard stone for the megalith might symbolize the craft’s impenetrable and enduring qualities. Could the Ishinohoden megalith be evidence of an extraterrestrial visitation documented by our ancestors?

Parallel Legends in Japan

During his journey through Japan, Giorgio Tsoukalos explored another ancient site with a strikingly similar legend—the Masuda no Iwafune. This colossal 800-ton rock structure, carved from a single piece of granite, bears a resemblance to no other architecture in Japan. It features intricate square grid patterns reminiscent of similar mythological depictions in India, particularly in Mahabalipuram. These patterns are associated with celestial beings and their flying vehicles.

Interpreting the Masuda no Iwafune

While some researchers argue that the Masuda no Iwafune is a tomb, others propose a more captivating theory. They believe it may represent the sky boats described in ancient Japanese stories. These celestial vessels were said to descend from the heavens to Earth, carrying gods on their journeys. The name “Iwafune” itself translates to “stone ship” or “rock ship,” reinforcing the idea that these enigmatic structures are related to flying vehicles from our ancestors’ legends.



The exploration of Japan’s ancient megaliths, the Ishinohoden and Masuda no Iwafune, unveils a tantalizing connection between extraterrestrial encounters and human history. These colossal stone monuments, dating back thousands of years, bear witness to legends of celestial beings and their powerful stone ships. While skeptics may dismiss these theories, the striking similarities between mythologies from different cultures and regions raise thought-provoking questions about the possibility of ancient extraterrestrial interactions. As we continue to investigate these enigmatic sites, the boundaries between mythology and reality blur, leaving us to wonder about the true nature of these ancient wonders and the stories they hold.

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