The Sehitlik mosque is a stunning example of Islamic architecture, complete with marble façade, dome, and twin minarets. No one can claim that it disturbs the cityscape, as it's far enough removed from built-up areas, on land that has been linked to Turkey for 140 years, since the Ottomans were present in Prussia.

http://www.dw-world.de/dw/article/0,,1219001,00.html

“The More People Know about Each Other, the Easier Tolerance Becomes” - Open Mosque Day in Berlin"

http://www.goethe.de/ges/rel/thm/cid/en182307.htm

http://www.sehitlik-moschee.de/moscheefuehrungen_berlin.php