In response to the recent refugee crisis, Europe has been rapidly erecting border walls. In the near future, if building continues at this pace, Europe will have more physical barriers between neighbors than during the Cold War. Scary, right?
In the four-part series Walls of Shame, Al Jazeera explores four of the most controversial barriers in the world today and takes a look at the impact on the lives of the people on both sides. Click on the links below to watch.