trivial minutia #2 - north america and then some

• The state with the highest percentage of people who walk to work: Alaska

• The percentage of Africa that is wilderness: 28%
  

• The percentage of North America that is wilderness: 38%

• The average number of people airborne over the U.S. in any given hour: 61,000

• The first novel ever written on a typewriter: Tom Sawyer.

• The San Francisco Cable cars are the only mobile National Monuments.