Are there any religions in Pokemon? From what I remember, no character in Pokemon is shown going to any sort of religious house of worship, and there doesn't seem to be much if any mention of religion/religious beliefs until Sinnoh, where there is lore following Arceus's creation of the world. Are there any organized religions in the world, worshiping either Arceus or some other deity/pantheon?
It's not a religion from the present Pokemon World, but in the manga series The Electric Tale of Pikachu (Dengeki Pikachu), in the fourth chapter (Haunting my Dreams), Brock says to Ash that in "ancient times" the people who lived near the Pokemon Tower in Lavender Town worshipped Pokemon as gods: