As an island nation with thousands of years of civilisation, Indonesia holds countless mysterious relics of the Archipelago. From Sabang to Merauke, every region has its own stories—be it unresolved legends of the Archipelago, unexplained phenomena in Indonesia, or mysterious cases in Indonesia in modern times. We present these not merely as folklore, but with analysis based on current research, including archaeological data and documented testimonies. This way, we can more critically separate myths and facts of the Archipelago, while appreciating the complexity of the nation’s history.

Gunung Padang Megalithic Site: The Prehistoric Civilisation Puzzle That Shook the World

As one of the most controversial archaeological mysteries of the Archipelago, the Gunung Padang site in Cianjur is far more than just a pile of stones. Georadar research and core drilling revealed layered structures estimated to be 10,000–20,000 years old—much older than the Pyramids of Giza. The key historical riddle of Indonesia here is: Who built it, and how could Ice Age technology create a 25-hectare complex atop a hill? Archaeologists are divided; some believe this is evidence of a lost advanced civilisation, while others doubt the dating methodology. The site’s complexity is visible from the neatly arranged hexagonal basalt andesite columns—a type of rock only found deep on volcanic slopes. This greatest unsolved mystery of the Archipelago is further reinforced by the discovery of large hollow chambers 15–25 meters underground using ground-penetrating radar. Are these ceremonial halls, royal tombs, or something even more spectacular? The government continues limited excavations, but budget constraints and academic debates have hindered significant progress. …