The article concentrates on the changes in the cultural practices of the world and their reflection in the Russian and English languages. We argue that knowledge of cultural practices is stored in mental (cognitive) models which are part of the conceptual worldview (CWV) of a particular nation and are closely connected with language structures. The relations between conceptual and linguistic structures are multi-dimensional and not uni-directional. As cultural practices are subject to change, so are the mental models and language structures. The emphases are on the analysis of the dynamic relations between cultural practices, CWV and their linguistic instantiations in English and Russian.