Penis Museum

An Icelandic museum devoted to the male organ, with preserved examples of everything from sperm whale to hamster (but no humans).

Don't worry, though, they've got four volunteers lined up to donate their penises after death. How's this for creepy: "Stan Underwood supplied a written description of his penis -- which he purportedly nick-named 'Elmo' -- for display alongside a life-size plastic mould of the member as well as his pledge to donate it."