Did Hitler only have one testicle? This juicy anatomical detail was included in the Nazi dictator's autopsy when it was finally revealed by the Soviets in 1968. Was the Fuehrer born that way? Did he suffer a nasty WW1 wound? Or does the secret lie with the famous British war anthem, "The Colonel Bogey March"?

Eva Braun put up with more than we think to be a Nazi dictator's consort. Hitler suffered from uncontrollable flatulence -- an ailment that poisoned the atmosphere at the Berghof and may have hastened the end of the war.

In the 18th century, castrated Italian singers were sex symbols sought out by women across the courts of Europe. The most famous, Farinelli, lived like a rock start and has even had his own modern biopic. Learn why castrati were the bedroom idols of the era -- and listen to the only known recording of a castrato, made in the Vatican in 1902.

A survey of the forgotten milestones of modern love -- from the 1556 "discovery" of "the seat of a woman's delight" by Renaldo Columbus (no relation to Christopher) to the 18th century birth of "sex as we know it," the invention of pornography (1864), the first use of the word "homosexual" (1892), Virginia Woolf's vision that that the sexual revolution was nigh (1908)... and more!

Female desire has been a battleground for thousands of years. Men have downplayed it since the ancient Greeks, demonized it in Puritan witchcraft trials and misinterpreted in the studies of Sigmund Freud. Wednesday Martin -- author of Primates of Park Avenue, Untrue and The Button, a history of women's most sensitive part, unravels the saga from the Agricultural Revolution to the Renaissance and the "clitoracy" movement today.

Jesus' foreskin isn't the only famous phallic relic -- the organs of Napoleon Bonaparte, Rasputin, Tutunkhamun and John Dillinger have been on the market over the years. A rundown of celebrity body parts, including Galileo's finger, Einstein's brain, Beethoven's ear bones and Abe Lincoln's skull fragments -- as well as famous frauds like Joan of Arc's heart. Sic transit gloria mundi.

Celebrity memorabilia is big business these days, but nothing quite compares to the Holy Foreskin, a portion of Jesus' most intimate anatomy revered by Christians since the Middle Ages. David Farley, author of An Irreverent Curiosity and star of a National Geographic TV special, The Quest for the Holy Foreskin, is the world's leading expert on the sacred prepuce and its mysterious fate. The relic was stolen from a church in an Italian hill town in 1983. Was it by Satanists, neo-Nazis... or the Vatican?

How an obscure 1712 pamphlet called Onania began the war on masturbation in Georgian London. Over the next 200 years, the campaign against self-pleasure became an international phenomenon, and led to such oddities as the creation of Corn Flakes and Graham crackers in the US.

Was Charles Darwin a player? Christopher Ryan, author of the New York Times bestseller Sex At Dawn, discusses the Victorian triumph of views on sexual evolution and what they mean for us today. Discussed: Can new research on prehistory help explain modern scandals? What do we know about Darwin's erotic life? Who invented "key parties"? What is an "anaphrodisiac"? And -- are Republicans stuck in the Agricultural Revolution?