The Wind Shrine is a shrine built to house the Wind Mirror in Final Fantasy IX, located on the Forgotten Continent in a valley filled with high winds. The party splits into four teams of two to tackle all four shrines simultaneously.
Data hacking shows that there are many gaps in the numerical sequence of battle formations and monster IDs, showing that many battle formations and monsters were deleted prior to the final version. In addition to many more, three missing monster IDs appear around the "Earth Guardian", making one suspect that in the original version the player was to fight all four of the guardians instead of only one (in the final game, the other three are defeated via cut-scenes, including Wind Guardian/Tiamat). Design artwork for these other three guardians is known, as well as for deleted locations, which would probably have been where they were fought.