a Skylight or Light Tube

http://www.houzz.com/ideabooks/21634448?utm_source=Houzz&utm_campaign=u950&utm_medium=email&utm_content=gallery17

In the gloom of winter, seeing a bit of the sky from inside your home can often be quite soothing. Daylight not only can do wonders for our psychological comfort, but can also be used as part of an integrated design strategy...