ELI5: Explain Like I'm 5

Aeronautical chart

Aeronautical charts are special maps that help pilots find their way while flying. They show things like airports, airways, and other important landmarks in the sky. On the charts, airports and landmarks have special symbols that help the pilot identify them. The charts also have lines that show airways, which are special paths that airplanes follow when they fly. Lastly, the charts also have numbers that tell pilots the altitudes (heights) of certain places in the sky.