The article focusses on the construction of “spaces of knowledge” (Wissensräume). The following question is at the center of discussion: Can the past per se be understood as a separate and detached space of knowledge? As theoretical framework I use radical constructivist theory – theory of knowledge. The paper discusses the perception of knowledge and consequences of the offered definition for archaeological knowledge about the past. Illustrated by an archaeological example I will demonstrate how spaces of knowledge are being constructed. On the basis of these reflections I will give an answer to my research question. However, the answer will not be yes or no but will combine the two to give a more adequate picture of a complex phenomenon. In the last section I will reflect on the consequences for archaeology as such.