Highest Office Held: Speaker of the US House of Representatives (Georgia)

How does the man responsible for the '96 government shutdown spend his life after politics? The man who once said this about cheating on his first wife: "She's not young enough or pretty enough to be the wife of the president. And besides, she has cancer"—how does that man fade into the background gracefully? Dinosaurs.

Gingrich is a prolific "amateur reviewer" of books on Amazon.com, wrote the introduction to America's Best Zoos, and has gained a reputation as—no shit—a "dinosaur enthusiast."