Christina is an East Berliner who was born in the GDR, a socialist republic that no longer exists. She danced on the Wall in 1989, and closely observed the restructuring of Germany and the frantic urban transformation of Berlin. At the European University Viadrina in Frankfurt (Oder) she earned an MA in cultural history and comparative social sciences, particularly the ideology-based history of the twentieth century. Her dissertation was on a more contemporary subject of "The Economic Impact of the Contemporary Art Scene on the city of Berlin." She now works as an arts administrator, manages urban development initiatives, and since 2006 routinely walks guests through the eclectic and varied political, cultural, and architectural histories of the German capital and beyond.

Heribert is a native Berliner whose family history can be traced as far back as the founding of the city. An expert in urban history, for more than twenty years he has been guiding interested crowds through the German capital and the surrounding Mark Brandenburg, letting the stone witnesses of passing time tell their stories while he enthusiastically revives old lifestyles and tastes. He studied sociology, history, and cultural anthropology at the Freie Universität Berlin. His professional experience is varied and far-ranging, including working as a freelance trainer for communication and intercultural education since 1982, and guiding tours since 1986. In the West Berlin borough of Wannsee he runs with his wife two fine cafés (including at the Max Liebermann Villa Museum) and a gourmet delicatessen, and he is well-versed in fine cuisine. With an anecdote for just about every historical detail, Heribert is the consummate companion for any and all learning adventures in this city.

Robert grew up in East Berlin during the 1980s and went on to study at the University of Florence, Italy. He received his PhD in cultural studies from Humboldt University of Berlin where his dissertation focused on sexual violence in the Nazi concentration camps. He recently worked as a researcher for the BBC and as a historian for the Sachsenhausen and Ravensbrück concentration camp memorials. His interests range from the history of art and architecture to modern European history and WWII. Robert worked for Hampshire College and has given guest lectures at both Boston University and Brown University. He has been working as a tour guide for more than ten years.