The stairs leading to the outside stair entrance to the station. As there are entrances to the station directly from the two domestic terminals, this entrance is all but unused.
<a href="//commons.wikimedia.org/wiki/User:Gareth" title="User:Gareth">Gareth Edwards</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>