Pokémon aren’t real. They are holographic projections created by governments of eld in order to control the populace. Pokémon are maintained by a network of satellites which the current peoples of the world, so enamoured they are in exploring Pokémon, no longer have the technological aptitude to interact with. The ‘ancient structures’ with pokémon lore in them are ancient tourist traps which people now believe are their cultural heritage.