2 for 1 Adult Entry to Ripley's Believe it or Not! Add a little excitement to your life with this one day entry for two adults to Ripley’s Believe it or Not! London. Explore and peruse a host of facts and exhibits surrounding a myriad of topics, including amazing art, curious culture, remarkable people, incredible nature, history re-discovered and weird but wonderful. So live a little and allow yourself the chance to feel a sense of wonder and astoundment you haven’t felt since you were a child! Get this and Save 58% Off on Entry to Ripley's Believe it or Not! For Two Adults Now £23.