The new Croods movie makes a great joke of this. The cavemen come across a slightly more modern group of people and they have windows. One of the cave kids beco

The new Croods movie makes a great joke of this. The cavemen come across a slightly more modern group of people and they have windows. One of the cave kids becomes obsessed with watching out the window and even builds a portable window to watch the world through. Love when they give the parents little pieces of humor like that!