Hamburg, district Harburg, quarter Harburg, residential building Mergellstrasse 18 (protected cultural heritage monument), part of ensemble 31172 (Barlachstrasse 24, Hirschfeldstrasse 10, 12, Mergellstraße 8, 10, 12, 14, 16, 18, 20, residential area buildings Barlachstrasse / Hirschfeldstrasse / Mergellstrasse)
<a href="//commons.wikimedia.org/wiki/User:KaiBorgeest" title="User:KaiBorgeest">KaiBorgeest</a>
<span class="int-own-work" lang="en">Own work</span>