The thesis deals with European sacral architecture of the twentieth and the twenty-first century. Particularly, it refers to Judaic, Roman-Catholic and Islamic buildings. The second part puts into historical context the sacral constructions of individual religions including their function, characters and typology. In the third part of this thesis the representative sample of significant modern sacral constructions is selected, always under circumstances regarding their creation, the urban description and the setting in a specific location as well as the architectural layout, the interior arrangment and a possible use of special technological procedures at their construction. The mutual comparison and the evaluation of the modern European sacral architecture development are carried out in the fourth part. This section notices the function and the usage of light and presents some extraordinary buildings from this point of view. The final fifth part tries to answer the question, how a modern temple should look like.