Red concrete walls frame a chasm leading to a memorial inside Warsaw's barbican, which commemorates the thousands of Polish citizens murdered by the Soviet secret police during the second world war. More
By juxtaposing selfies taken by visitors to Peter Eisenman's Holocaust memorial with archive photos from concentration camps, artist Shahak Shapira has revealed why design that shames is important, says Owen Hatherley in his latest Opinion column. More
RAAAF and Atelier de Lyon have revealed plans for a monument commemorating the huge feat of engineering behind the Dutch Delta Works – a vast network of dams, sluices, locks and levees designed to prevent flooding in the Netherlands. More
The Norwegian government has offered to abandon plans for a memorial to the 77 people murdered during the terrorist attacks of 22 July 2011, after fierce opposition by local residents. More
The cafe building where 13 people tragically lost their lives in the Norwegian terrorist attacks of 2011 has been enshrined within a new learning centre by architect Erlend Blakstad Haffner (+ slideshow). More
Opinion: meaningful architectural reactions to crises may take time, but quick temporary structures can be just as effective, and both are far preferable to not responding at all says Mimi Zeiger. More
A towering steel Holocaust memorial in Italy was popular this week, so we've revisited the best commemorative architecture published on Dezeen. Visit our latest Pinterest board to explore more examples, including a concentration camp house shrouded in glass, a fan-shaped stone structure in Japan and a tribute to suspected witches burnt at the stake in 17th-century Norway.