Buzz·Posted on Sep 12, 201415 Penis Facts That Will Blow Your MindPhallic phacts at their phinest.by Javier MorenoBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. Foreskins can be used to make skin grafts for burn victims. One foreskin can actually provide four acres worth of grafted skin. 2. The world's largest penis is 13.5 inches. 3. According to a study by the University of Ulster-Northern Ireland, men in the Republic of Congo have the biggest average penis size in the world. 4. Humans are the only primates that do not have have bones in their penises. 5. Babies can get erections in the womb... 6. ... So can corpses. 7. There is a condition known as Koro, which is an irrational fear of retraction of a penis back into the body. Tap to play GIF Tap to play GIF 8. There is a museum in Iceland strictly dedicated to penises. 9. There is a rare condition known as diphallia where a person can have two functional penises. Warning This image is graphic Tap to reveal Click to reveal 10. Circumcision gained popularity in the United States during the 19th century to help stop masturbation. 11. All penises actually start off as clitorises. Tap to play GIF Tap to play GIF 12. Penises can actually break. 13. Blue whales have the largest members out of any species in the animal kingdom. 14. There is a restaurant in Beijing that specializes in serving penises. View this video on YouTube The restaurant, called Guolizhuang, has 30 different varieties of penises and has been featured on the Travel Channel. 15. There is a festival every year in Japan devoted to the penis and fertility.