Windows can make your basement more aesthetically pleasing and improve safety. Large basement windows, sometimes known as "egress windows," from Pella of Terre Haute are created to allow more light into underground areas than the older, smaller, rectangular windows that sit above ground. They also give you a way to get out in case of an emergency.
The main difference between basement, or egress, windows and standard windows is that basement windows are required to be big enough for an average-sized person to make it out in order to meet safety requirements set up in building codes. You are able to pick from appropriately sized casement, sliding or double-hung windows when you install basement windows. Make sure you completely understand local building codes before your purchase of basement windows.