An interactive installation exploring the relationship between rental costs and travel times across Cologne's 84 districts. A physical scale model of the city renders each district's average rent as height — the more expensive the area, the taller it rises. Placing a cube anywhere on the model projects the public transport reach from that point onto the surface in colour-coded intervals of time, allowing visitors to immediately read which parts of the city remain accessible within a given commute. Developed in 2014 as an exercise in data journalism, the project asked how complex, interrelated datasets could be made not only legible but personally useful — turning abstract housing statistics into a tool for a decision most people in the city were actively facing.