Unusual Facts About Roads - as part of the travel series by GeoBeats.
Here are 5 uncommon facts about roads.
Though we rarely give them a second thought, there are nearly four million miles of roadways and highways in the U.S. alone.
Every year, the roads of the United States are traveled by over six trillion dollars of freight.
Interstate highways that have even numbers run from east to west, while odd ones run north to south.
Indiana is the state with the most Interstate Highway within its borders, measured by square mile.
The first highway to run from the Atlantic coast to the Pacific Coast of the U.S. was the Lincoln Highway, or Route 30.