The Berlin Customs Wall was a ring wall around the historic city of Berlin, between 1737 and 1860; the wall itself had no defence function but was used to facilitate the levying of taxes on the import and export of goods (tariffs) which was the primary income of many cities at the time.

Pariser Platz is a square in the historic center of Berlin, Germany, situated by the Brandenburg Gate at the end of the Unter den Linden. The square is named after the French capital of Paris to commemorate the anti-Napoleon Allies' victory at the Battle of Paris (1814), and is one of the main focal points of the city.