1. A method of displaying a runway on an aircraft display in a three-dimensional manner, said method comprising: receiving information about a height of the runway; receiving information about a height of at least one terrain point near the runway; using the height of the runway to determine a plane; using said plane to determine an adjusted height for the terrain point near the runway; displaying the runway; displaying the terrain at said at least one terrain point as having the adjusted height; receiving information about a height of a second runway; determining if said second runway lies within a predetermined distance of said runway; if said second runway lies within the predetermined distance, using said height information about said second runway in determining said plane; and if said second runway lies outside the predetermined distance, using said height information about said second runway to determine a second plane, and further using said second plane to determine a second adjusted height for a second terrain point near the second runway, and displaying said second terrain point at the second adjusted height.