Basement Halls of Diocletian’s Palace
Well-preserved underground chambers used as a filming location for Game of Thrones and showcasing Roman engineering
About Basement Halls of Diocletian’s Palace
Croatia
The Basement Halls of Diocletian’s Palace, also known as the Substructures, are one of the best-preserved parts of the ancient Roman palace in Split, Croatia. These vast underground chambers were built in the 4th century AD to support the upper floors of the palace, where Emperor Diocletian once resided. The impressive, vaulted halls, stone corridors, and storage rooms provide a fascinating glimpse into Roman engineering and daily life. Over the centuries, the basements were filled with debris and forgotten, only to be rediscovered and restored in modern times. Today, they serve as a museum and exhibition space, hosting art displays, cultural events, and even a local market. The Substructures are also famous for their appearance in Game of Thrones, where they were used as Daenerys Targaryen’s throne room and dragon dungeon. You can explore the dimly lit stone passageways, admire Roman artifacts, and imagine life in Diocletian’s time. A visit to these underground halls offers a unique perspective on Split’s ancient history and architectural brilliance.
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