The marvellous Potala Palace @ Lhasa, Tibet is a 13 storied, 117m high (300m total over valley floor), measures 400m (E-W) X 350m (N-S), 3m thick slope walled (5m @base),...
On the amazing World¨s highest Railway (Tanggula : 5072m) : Golmud - Lhasa Qinghai Tibet railway 1142 KM (960KM over 4000m & 550KM of it built on permafrost) over earthquake...