My WLAN

I went Warwalking today and noticed that there are now 14 WLANs in my neighborhood, most of them secured by Mac-Address-filters or WEP.
Here is a map of my WLAN:

With the second Accesspoint the whole garden is covered and unfortunately it is now visible from the Metropoldi.
The pink color shows the area where you should be able to connect to my WLAN, but I need to collect more data from the neighbor houses, especially the school (no 58-56) and the garage (Hernalser Hauptstr 57).