Karl-Marx-Allee

"Moscow in Berlin Formerly considered East Berlin , Karl Marx Allee is one of the best places to get a glimpse of socialist history, architecture, and local life in Berlin from the past. The famous street is 89 meters wide and 2 km long and still houses some of the "wedding cake" architecture that East Germany was known for. You don't need a guide. Save your money and simply check out the numerous (30+) plaques along the way (on both sides of the street) which provide you with history, stories, and old photos of the famous street. I suggest that you start at the Alexanderplatz U-Bahn station and walk along the north side of the street, then return along the south side—to get the full scope of the ultra-wide street."