Analysis of the endangered monuments in the Masovian Voivodeship, excluding Warsaw

This paper is devoted to analysing the endangered heritage buildings under law protection in Masovian Voivodeship (Poland) that have not lost heritage values. The methodology based on source research. The study presents the division to the most numerous categories: the original function, time of creation, location, and others. The paper presents the results showing categories under increased threat and identifies the need to perform such analysis for other voivodships that can help to channel the resources to prevent further destruction of most endangered categories. That includes performing detailed surveys to secure spatial information about buildings under discussion.