Possible Clues:

• Line of latitude
• What map line may show, a route winding across Quebec
• Globe divider
• It divides Earth into hemispheres
• Imaginary line around the Earth, equidistant from both poles
• Imaginary line which crosses a country named after it
• Important line as seen in Spielberg movie with soldiers
• Imaginary line circling the earth at zero degrees of latitude
• Line around earth
• Line at zero latitude