From the Puritan "mandatory sex" rule for married couples to Ben Franklin's racy newspapers, these are the stories behind America's sex pioneers.

The world's oldest profession turns up where you'd least expect it, including as a major source of revenue for the Catholic Church and as the driving force behind America's first racially integrated neighborhood.

From Ancient Rome to Washington, D.C., discover how the world changes when powerful people shamelessly shatter boundaries and break rules for fun.

These are the unbelievable true stories behind what happens when people treat sex like doomsday, from the little-known sex coverup in Pompeii to J. Edgar Hoover's legendary Obscene Files.

These are the surprisingly true stories about how the sex lives of the powerful have shaken up history, from Warren G. Harding's days as a playboy to one woman's time in a prince's modern-day harem.

From the man who discovered the Kama Sutra to sexologist Alfred Kinsey, these are the stories behind the "Superheroes of Sex."

Nothing unleashes sex like war - after all, if you were going to die tomorrow, what would you want to do tonight? From Ancient Roman battalions to seductive spies, discover how sex has decided wars and changed the world.

From Emperor Nero's now famous sex parties to Teddy Roosevelt's crusades against sex-ridden New York City, these unbelievably true stories reveal what happens when people take sex to the extreme.

Many people have tried to harness the power of sex for their own gain, but sometimes these basic instincts backfire.

These are the surprising stories behind how scientists, the government, and even the judicial system have harnessed sex to change world history.