Twenty Jewish children used in <a href="https://en.wikipedia.org/wiki/Nazi_human_experimentation" id="mwuA" rel="mw:WikiLink" title="Nazi human experimentation">medical experiments</a> at <a href="https://en.wikipedia.org/wiki/Neuengamme_concentration_camp" id="mwuQ" rel="mw:WikiLink" title="Neuengamme concentration camp">Neuengamme</a> are killed in the basement of the <a href="https://en.wikipedia.org/wiki/Bullenhuser_Damm" id="mwug" rel="mw:WikiLink" title="Bullenhuser Damm">Bullenhuser Damm</a> school.