Related – Pixar Fest Explodes Back into Disneyland Resort for a Limited Time! Disneylands Pirates of the Caribbean takes inspiration from a real place – the Cabildo building in New Orleans Jackson Square, where the Louisiana Purchase was signed in 1803! Interestingly, the entire cost of building New Orleans Square, at $15 million, mirrored the price the U.S. paid for the vast territory of New...