So, if we are to recognize the entire city to be a living entity, just like a smart human being, a smart city would also require constant monitoring of its health. Just like a human being using a smart band or a smart watch to sense his/her vital parameters such as temperature, blood pressure, glucose, heart rate, lipid profile, Vitamins etc. the smart city may also require several thousand sensors installed in its arteries and touch points to sense its vital organs.

Downtown Xi'an is divided between two districts, Beilin and Lianhu.[…] Lianhu District's apartments typically rent for $150-250 a month, though it is possible to find very modest places for less than $100 or large four-bedroom flats renting as high as a whopping $400.

So, in London, birds of a feather must flock together, willy nilly, silk hat and frock coat must go with white gloves and brown sables, “peaky blinder and “ choker " must associate with crop fringed hair, ear curls, and rakish three feathered hat.

We halted for two days at Tashkurgan, to make arrangements for our journey onwards to Wakhan. The winter was unusually late and severe, and we were warned to expect considerable difficulty on the way over the Little Pamir from deep snow and intensely cold winds.