Annika Feuss Explores the Berlin Underground It can rarely be experienced so: devoid of people, reduced to form and colour. One wonders when, amidst the constant hustle and bustle of the underground, Annika Feuss had the idea for her series “Unter Berlin”. She documents a type of architecture rarely observed, one that tells the story of a century of German architectural history. The first Berlin underground line was opened in 1902, between Warschauerstrasse and Zoologischer Garten. The network now comprises 173 stations, with more than 1.3 million people using the system every