Arizona Roads + Highways

One of Arizona's most dangerous roads twists and turns through the Superstition Mountains. Are you brave enough to give it a try?

Traveling at 70 miles per hour, without stopping, it takes almost a full business day to drive the longest highway in Arizona end to end.

One of these states ranks as the worst state for road rage.

If you're traveling Arizona's I-19 between Tucson to Nogales, Mexico, you may be confused about seeing the road signs in metric.

Have you seen any of these drivers on the road? They can change their plates, but I'll be we can guess where you're from by the way you drive.

READ: Have you ever flashed your high beams at an oncoming driver to warn of danger on the road or a speed trap? Is this legal in Arizona? The answer will surprise you.

Not only is the Interstate Highway System essential to American travel, it is one of the nation's most important and dependable means of transporting goods—including foods, sundries, and medical supplies—from state to state.

If you've ever wondered what those random black lines are on the road, learn what they are and why they're there.