J100 (Mini Sky City) Changsha with rooftop helipad. Located next to GAC Fiat factory.
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Another similar building with helipad on the balcony: Here's a slice of what will be Sky City, the world's tallest building as shown by Treehugger site.
Guiyang Financial Center with rooftop heliport | 400m
Liuzhou tower with rooftop heliport at 303m. By AECOM.
