This is the Cathedral church section of the map of the wasteland presented by:
This is the main level. To go up to the tower you will need to get the Red badge. You can get it off Lasher. To go down you will need to get the Black badge off Morpheus on the last tower level. Also you should talk to every one but the mean guy in the top-left hand room. You should also talk to the guy who sells stuff in the cathedral in the bottom right hand room of the biggest part.