This visualization depends on blending mulitple elements together. Unfortunately your browser doesn't support element blending through mix-blend-mode, thus this visualization will not look as intended. You can view screenshots in the project documentation (german).
About
109996 Photos, 23582 Photographers, 1 month 3 days 8 hours 16 minutes 24 seconds Berlin
Philipp Geuder, Sebastian Maschner, Nicole Meckel, Janina Schulikow, Ina Soth | FH Potsdam 2014