Berlin wall high tech guide

Hi tech satellite technology help visitors to Germany's Berlin Wall as it nears 20 years since it was brought down. The Berlin wall may be a part of Germany's history, but now it's been taken into the 21st century. From the beginning of May, visitors to the German capital will be able to walk the wall with a new multi media guide run by GPS. The new guides are being brought out in preparation for celebrations to mark the 20th anniversary of the fall of the Berlin Wall.