Map generated by assembling computer public domain data. No artist or human activity was involved. Minimal human involvments done by me is granted as public domain.

the list of objects on map is : http://spreadsheets.google.com/pub?key=pJK2qayoPwT8YH0PIUrulGQ

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.