The Aztec Empire is found on Time Tangled Island. When you get there, you will see some temples. On one is the king and his assistants. You will see that a piece of the sun stone is missing. It can be found in the Thomas Edison time period. On another is an old man, who will give you his mask. At the base of the king's temple, you can see some guards, one of which has the goggles that you must return to the hikers on Mount Everest. In the corn field at the front, you can see a European soldier hiding. In between the temples, there is a rack with skulls on it.