Hi
Laszlo,
Sorry,
I am a latecomer - due to holiday absence. Although being German, I am NOT an
expert, but three things are sure:
1)
There was no border crossing at Alexanderplatz, since this square is not at the
border, but deeper in East Berlin.
2)
Germans could NOT cross at Checkpoint Charlie - this was only for
foreigners
3)
Friedrichstrasse was the classical crossing point for West Germans, especially
for those who had no visa to enter the DDR, i. e. those on day trip
allowances.
But there is more to say: West Germans with
business visa could cross at a couple of additional places like Glienicker
Brücke (this was also the place where spies from both sides were exchanged). How
many of these additional crossings existed I do not know for sure, but if you
check with http://www.die-berliner-mauer.de/
you may find it was Bornholmer Stasse,
Chausseestrasse, Invalidenstrasse, Heinrich-Heine-Strasse, Oberbaumbrücke and
Sonnenallee.
Best
wishes, and have a nice dinner - I am pretty sure you will lose, because if you
go into details, some of the crossings listed above may have existed for a while
only and were closed after the Est Berlin comrades felt they offered no
advantage; so the lady will always win if she is an
expert.
Wolfgang