I visited Lorelei, a German bar in Tokyo, both in October 2012 and March 2014.
There is a wonderful German bar in Tokyo called Lorelei. You can find it in a basement in Ginza. It can be quite tricky to find, but offers a great experience. In lies in the west of Ginza, between the Yamanote line and Taimei Elementary school, on the way from Ginza towards Tokyo Station. It is in a basement, the entrance right next to a tobacco store. We found it by chance on my first trip to Japan, I have had to look for it on later visits.