There are stories about ships that came once from a distant land in the ocean to the north of the country that you know now as Peru. There was a kind of king and their presence modified a bit the culture there. Several centuries after the son of an Inca took a vast fleet to navigate around the world. If he get to the land of the old traveler certainly the Inca Empire was more complex than the lands visited and this time we touch them.
What I read was that the Inca brought a metallic chair and actually there was no much more. The number of ships, the army of sculptors, functionaries, and workers could be perhaps more amazing to the lands where they arrived. Or perhaps not, different cultures have different priorities. For example when Spaniards came actually there was not much to see, except the work on steel and the beautiful horses.