Memorial Plaque "Victims of WW2" is freely accessible and is located in the lobby of the palace YMCA building at the adress: Na Poříčí 1041/12; 110 00 Prague 1 - Nové Město (Czech republic). The memorial plaque recalls the three Secretary of the YMCA, which were: Rudolf Mareš (* 1909 - † 1944), Jaroslav Šimsa (* 1900 - † 1945) and Jaroslav Valenta (* 1911 - † 1942), who died in the years of oppression 1939 to 1945 and who actively participated on the anti-Nazi resistance in protectorate.