July 10, 20178 yr Author Staff The flying saucer like roof-shelters are huge and look imposing. If aimed towards a HDB stack/unit can seem threatening... So far I noticed there are of these along Sengkang East Way. The two huge roof-lines are located in the two red-circles. The arrow shows potential poison arrows.
July 11, 20178 yr Author Staff The red arrows shows the Sha Qi or poison arrow from the sharp edges of the entire roof-line radiating outwards.
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