If you love airplanes and have a fascination for aviation you will love the image section on FlighGlobal.com.
Under the cutaway section you will find hundreds of high-resolution images of cutaways of airplanes of all types. You can peek into the interior and view the intricate details of passengers planes, military planes, and helicopters, and even cross section of airplane engines. The labels are not very readable on a quite a few of them, though. If you want higher resolution you have to buy them.
Who designs these mind boggling beasts anyway?