Snake handling, female priests and bishops, same sex marriages, contraception, cross burnings, and nature veneration to name a few.
The entire structure, vestments, images, architecture, rituals, and Holy days (holidays) of the RCC have their origins in paganism. The Protestant organizations are after all daughters of the RCC and have retained many of the pagan practices and have even added some in certain cases. Why do you think people are warned to “come out of her” in Revelation?