Postblloku (Checkpoint), the Memorial to Communist Isolation, commemorates the country’s political prisoners who suffered under the Hoxha regime. It is situated on the main boulevard opposite the government building. Co-created by the writer and former dissident Fatos Lubonja and the artist Ardian Isufi, the monument is made up of three main elements including one of the small concrete defensive bunkers that litter the country, several concrete supports from the mine at the notorious Spaç labour camp where thousands of political prisoners suffered between 1968 and 1990 and a brightly painted section of the Berlin Wall from Postdamer Platz that once split Germany in two.