Paths to Adventure: Castles and Strongholds for Fantasy Grounds

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Acra (fortress) - Wikipedia

The ancient rock fortress of Yapahuwa is similar to, but smaller than, Sigiriya. Dating from the 13th century, it was the capital and main stronghold of King Bhuvanekabahu I (1272 - 1284)

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Antonia: The Fortress Jerusalem Forgot – Popular Archeology

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