The Tower of Babylon represented the pinnacle of human achievement and accomplishment. It demonstrated how the world had valued their technological abilities over God. It was man’s way of showing that they did not need God anymore, because they have placed their trust not in him, but the world around them. As a result, God scattered the people, and removed their pride by confusing their language.
They began to build monuments to man, and not God.
The tower is that monument to man, God seeing the pride, toppled the tower and confused the people to ensure his will would continue. Where is our tower? Have we not reached a highlight in our own world? Our modern world is so advanced that just like in Babylon, we begin to think that we do not need Him. When we become prideful and self-dependent, we start to lose sight of God.