Ripley's "Believe it or not" are great discoveries and amazing collections. Explorer Robert L, Ripley, who was a newspaper cartoonist, collected them while visiting 198 countries. He traveled a distance of 18 complete trips around the world.

He has extended his area by degrees and collected rare records. His cartoon 'Ripley's Believe it or not' has had a lot of popularity. His junior and a friend founded Ripley's foundation, published a book, and established the museum after his death in 1941.

After that, Ripley's "Believe it or not" became a franchise in radio, television, museum , and books. Introducing discovered interesting things. museum s have been established in the U.S., Canada, U.K. Mexico, Denmark, and Australia. It grew as the biggest entertainment chain.

"Believe it or not" museum in Jeju opened in it's 11th country and was the 32nd "Believe it or not" museum . The Jeju museum at Jungmum tourism complex opened on the 24th of December, 2010.