All of this is very impressive, but then it also makes it all the more surprising when you encounter the gaps.
Today is just red rain, but some pretty recently built and nice-looking malls have dripping leakage from the roofs and put out security tape and rubbish bins to block off the affected area and contain the leak.
Some recently built and nice-looking walkways are flooded by several centimetres because they weren't built with the appropriate tilt and drainage.