Look at the header "Northern Europe" on https://st.unicode.org/cldr-apps/v#/de/T_Europe/.
You see an underline when you hover, but when you click on it, it doesn't put a URL in the address bar. That means that you can't copy a link to a header, for use in documentation, etc.
There is an id on the item:
<a id="Northern Europe">Northern Europe</a>
But it is not handled like the code on (say) GG, which results in the URL