What are the outstanding cases of industrial heritage and historical block protection and transformation abroad?

Although Osman's reconstruction project is huge, and he has used many means to double the housing rate, he has always emphasized the unity and integrity of the city and has never destroyed the whole city of Paris. This is quite different from the result of China's contemporary old city reconstruction. After the renovation of most old blocks in China, especially residential areas, most of the high-rise buildings lack regional characteristics, which makes the whole city lack vitality and the space and form of places become boring. Osman followed the18th century French neoclassicism "aesthetic" standard when rebuilding the house, and did not arbitrarily increase the number of floors, but only increased the original five-story building to seven floors, and the height of each building plus the attic was only 30 meters. This is more cautious than the way American architecture reached the sky in the19th century.