1. Why is Route 66 so-called?
Even-numbered routes run from East to West.

2. What is the longest Interstate route?
I-90: Seattle, Wash., to Boston, Mass.

3. What is the shortest interstate route?
I-97: Annapolis to Baltimore, Md.

4. How many rest areas are part of the interstate system?
About 1,200

5. What is the longest north-south interstate route?
I-95: Miami, Florida, to Houlton, Maine

6. What state has the most interstate mileage (not routes)?
Texas

7. What state has the most interstate routes (not miles)?
New York

8. Which President was instrumental in passing legislation to establish the interstates?
Dwight D. Eisenhower

9. What state capital is not directly on the interstate route?
Jefferson City, Mo.

10. What is the oldest segment of the National Interstate System?
Grand Central Parkway in Queens, NY