Emergency Access Point No. 7 on the Ma On Shan Line of the Mass Transit Railway (MTR), Hong Kong. This door is located on a flyover north of Shek Mun Station. Beyond it is a stairway which permits access to the track level below.
<a href="//commons.wikimedia.org/wiki/User:Citobun" title="User:Citobun">Citobun</a>
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<span class="int-own-work" lang="en">Own work</span>