Water Seven is Venice — specifically the Venice of flood season, when the Adriatic tide overtops the city’s foundations. Aqua Laguna = Acqua Alta. The Galley-La Company is the Arsenal of Venice, the medieval shipyard that built the Venetian naval empire. And the city’s imminent sinking mirrors Venice’s real existential crisis in the 21st century.
The Alabasta arc is set in the reign of Ramesses II — the greatest pharaoh of ancient Egypt, whose queen was named Nefertari. Rain Dinners Casino is modeled on the Great Pyramid of Giza. And the tomb where the first Poneglyph appears is the very site that created the UNESCO World Heritage system.
Skypiea’s current civilization maps to Cambodia — the Tonle Sap lake, Phnom Penh Royal Palace, and Sambor Prei Kuk temples. But ancient Shandora is a completely different model: the Maya city of Tikal in Guatemala. This double structure is deliberate, and it explains why Shandora disappeared.
Every One Piece admiral has a real-world model — a Japanese film star from the Showa era. What makes this
Captain Kidd’s treasure legend spawned Treasure Island, which gave us Rayleigh and Zeff. Urogue’s model is Barbarossa — and a monk Oda has wanted to write since before One Piece. Apoo’s subordination to Kaido was built into his historical model from day one. Bege hides Al Capone, The Godfather, and two names hidden in the Red Hair Pirates.