I found the following site from an entry for a "stolpersteine" or "stumbling stone", which is an interesting project in itself.
https://www.tracesofwar.com/
On the 1st October, 2002, STIWOT took the initiative to comply with the massive requests for information about sights and places of interest related to the Second World War. With the support of volunteers and visitors TracesOfWar.com has in the following years been developed into one of the most important sources on the World Wide Web when it concerns museums, monuments, memorials, cemeteries and other places of interest regarding the Second World War in Europe and beyond.
