The Museum of the 20th Century in Hoorn had a nice exhibition about the former GDR. Well worth it! It's a great museum anyway. If you like “the old days” and “as it used to be at home” it is actually a “must” to visit.
Checkpoint Alpha was located on the border between (former) East and West Germany. Unfortunately, the "west" side has almost disappeared, but on the east side there is still a large part of the old border...
At this website you'll find all the pictures and stories that I could not place on the other websites I do manage, but which were too good to be left alone. Do not expect high-flown stories, but mainly virtual wanderings ... I wish you lots of reading and above all, viewing pleasure.