If Dubai is luxury, then Abu Dhabi is a low-key luxury. They are rich and not rich, and the cost of building the world's most expensive palace hotel and a tree is as high as $3,000 a year; They adhere to tradition without resisting modern civilization, and every two or three hundred meters by the roadside there are more opportunities for mosques large and small and to meet various luxury cars than camels; They adhere to their lives and seek unique development, with flat lawns and shaded trees on both sides of the street and creating an international cultural focus on Sadiat Island