So airplanes don't crash into them.
Answer red/white towersIt has to do with color. Blue at a distance looks black, green blends in with the background, etc., but white and red can be seen at long distances, hence are good warning colors for the towers. By the way, why do you suppose many tribal carpets have red as the dominant color? After the brightness of desert, coming into a tent or home spread with reddish carpets relaxes the eyes.Also those colors are used to know the height of the tower, 10ft per colorcircles
'Bout tree-fitty
5,987ft tall
Constance Towers is 5' 8".
Frank Towers is 6' 4".
Tabatha Towers is 5' 6".
the twin towers were 110 stories tall.
310 foot tall towers.
by its foundation
Some are, depending on their height and location. Painting tall towers or buildings the same color as the land or sky could increase the chance they would be hit by aiplanes and helicopters. Because of the requirements of Visual Flight Rules, this is not as much of a hazard as clouds or fog, and almost all tall structures in the US are required to have anti-collision lighting installed.
They were very tall.
How_tall_are_the_new_Twin_Towers