The aim of the article is to analyse, in a diachronic perspective, the street names in today’s Berlin whose bases are geographical names referring to places in contemporary Poland. The analysis reveals a purposeful city-text that supports the nation-building narrative: either by mapping the state’s actual geography at the moment of the name’s bestowal, or by including the territories claimed (literally or metaphorically), beyond the current borders at the time of the naming. However, the degree to which these street names and the intention behind them are decipherable today remains questionable. Once meaningful for their original creators, today they are partly or completely semantically oblique to the general public, as evidenced by their contemporary reception.