Legendary figures Benjamin Franklin, Al Capone, Abraham Lincoln and Ernest Hemingway take a seat at the tough-guy table.
Tough guys profiled include astronaut Neil Armstrong, President Teddy Roosevelt, gangster John Dillinger and illusionist Harry Houdini.
Featured tough guys include daredevil Evel Knievel, President Andrew Jackson, billionaire Howard Hughes and Army Gen. George S. Patton.
Iconic tough guys include singer Elvis Presley, Gen. Ulysses S. Grant, baseball slugger Ted Williams and President John F. Kennedy.
Astronaut John Glenn, martial artist Bruce Lee, President Harry S. Truman and journalist Hunter S. Thompson each lived life without boundaries.
President George Washington takes on Gen. Douglas MacArthur; aviator Amelia Earhart is matched against boxer Jack Johnson.