For an insightful primer on the Berlin Wall, visit this outdoor memorial, which extends for 1.4km along Bernauer Strasse and integrates an original section of Wall, vestiges of the border installations and escape tunnels, a chapel and a monument. Multimedia stations, panels, excavations and a Documentation Centre provide context and explain what the border fortifications looked like and how they shaped the everyday lives of people on both sides of it. There's a great outlook from the centre's viewing platform.