An impressive documentation centre stands at a famous location of the Berlin Wall - it was here that the Wall was built incorporating apartment buildings on Bernauer Straße (you may have seen the dramatic video of the woman leaping from a window to escape). Across the street from the documentation centre is a remaining stretch of the Wall which, if you climb to the top of the centre, you can see over to the reconstructed no-man's land. The area between the centre and Brunnenstraße to the east is also being developed with an open air exhibition and history of the wall and the history of Bernauer Straße. A must visit for everyone. And it's free!