Prominent features (9)
I believe the answer is:
landmarks
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">prominent features</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for landmarks that I've seen before include "historic events" , "Prominent features" .)