Icelandic Phallological Museum
The Icelandic Phallological Museum (Icelandic: Hið íslenzka reðasafn [ˈhɪːð ˈistlɛnska ˈrɛːðaˌsapn̥]), located in Reykjavík, Iceland, houses the world's largest display of penises and penile parts. It holds over 300 penises from more than 100 species of mammals.
Source: Wikipedia — Icelandic Phallological Museum (CC BY-SA 4.0)