Plutonium Cave in Hierapolis

Plutonium Cave in Hierapolis
28 May 2025

Discover the Mysteries of the Plutonium Cave in Hierapolis

Hidden within the ancient ruins of Hierapolis in modern-day Turkey lies a place once feared and revered in equal measure — the Plutonium Cave, also known as Pluto’s Gate. This mysterious grotto was believed by ancient civilizations to be an actual entrance to the underworld. Dedicated to Pluto, the Roman god of the dead (known as Hades in Greek mythology), the Plutonium was one of the most sacred and feared sanctuaries of its time.

The Historical Significance of the Plutonium Cave

The Plutonium Cave dates back to the Hellenistic period, but it gained prominence under Roman rule, particularly during the 2nd century BCE. The site was associated with death and divinity because of the lethal carbon dioxide gases that naturally seep from its depths. Ancient priests of the cult of Pluto would demonstrate their “divine power” by leading animals — and sometimes even themselves — into the cave. While the animals would quickly perish from the toxic fumes, the priests, holding their breath and using knowledge of the cave’s structure, would miraculously survive, reinforcing the belief in their supernatural protection.

Greek historian Strabo described the site, noting that "any animal that passes inside meets instant death," and even birds flying too close would fall from the sky. This terrifying natural phenomenon reinforced the cave's spiritual status and made it a major religious attraction in the ancient world.

Visiting the Plutonium Today

Located within the UNESCO World Heritage Site of Hierapolis-Pamukkale, the Plutonium Cave is now a fascinating archaeological and geological attraction. Though the entrance to the cave is blocked off for safety, visitors can view the site from a close distance and learn about the rituals, mythology, and scientific discoveries associated with it.

A tour to Hierapolis often includes Pamukkale’s travertine terraces, Cleopatra’s Pool, and the ancient theater, making the Plutonium Cave part of a compelling and varied historical journey.

Plan Your Visit

Whether you're a history enthusiast, a lover of mythology, or simply curious about Earth’s natural wonders, the Plutonium Cave is a must-see destination in Turkey.

 

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