Take time to walk around the different chapels and test your perception.
Guess what they look like inside – before you see for yourself.
Think about the significance of windows.
How does the daylight get into the room? Is it light or dark?
Where and how do you get into the chapel itself, and is there a different way out?
http://www.flickr.com/photos/trevorpatt/6462376673/
http://www.youtube.com/watch?v=ZT2LoNE-a5Y&feature=related