Do you ever lay awake at night thinking about windows and window types? No, not the PC software. I’m talking about the opening in your wall that lets you see through to the other side. Windows may not be the first thing you daydream about, but when you realize how many different types of window designs exist, why they exist, what their applications are, and how each type of window is used, you may find them more fascinating than you realized. As you scroll down this page, you’ll find illustrated and photographic examples of all the most common (and not-so-common)