Before the plane landed, overlooking the Mediterranean coastal city of Barcelona from the air, a beautiful picture appeared before us. Green cities surrounded by blue sea and white buildings surrounded by colorful flower beds all show the harmonious coexistence between man and nature; The magnificent Holy Family Church and the unique Olympic Village skillfully combine the ancient and the modern. I believe that anyone who has been to Barcelona will have a special feeling that is difficult to express clearly in words. Barcelona's position in Spain is equivalent to Shanghai's position in China. However, such an international metropolis is far from being as noisy and bustling as people think. No matter where you are in the city, you will feel a warm, elegant, quiet and peaceful atmosphere. When I visited Barcelona, I often doubted the time when I lived. I saw that people's clothes were contemporary and the surrounding environment was ancient. I'm also curious about the urban environment. Is it the countryside? But there are no cows, sheep, farmhouses or cities? But this is the countryside. You can't even see the towering high-rise buildings and overpasses in domestic cities as symbols of "development" and "modernization". Obviously, Barcelona people don't think this is "development" and has entered "modern society", but the ancient civilization history is its most dazzling highlight and priceless treasure. Barcelona completely retains the ancient architecture and urban pattern, and wonderfully integrates modern and ultra-modern "hardware" into it, so that the ancient and modern of the city complement each other. Universities, research institutes, art galleries, museums, literary museums, bookstores, exhibition halls, the Arc de Triomphe, monuments, palaces, churches, theaters, squares, parks, fountains, former residences of celebrities and street sculptures are all over the city, which have painted a strong cultural color for Barcelona. At any time, people can enjoy the elegance of Picasso, Gaudi, Dali, Miro and Tapies, which Barcelona people are proud of, and follow in the footsteps of the great navigator Columbus. Barcelona is a famous seaport and commercial port in Europe and the Mediterranean, just like a pearl embedded in the Iberian Peninsula. This city is as precious as gold. However, Barcelona stopped real estate developers from all over the world and gave the golden land to nature. Nature injects pure breath into the city, and patches of lawns, rows of trees and gardens make this ancient Spanish cultural city with a history of more than 2,000 years full of vitality. Walking along the Gold Coast is an important part of visiting Barcelona. Go east along Cabreira Street to the end of Columbus Square, and the famous Columbus Monument stands in the center of the square. On the east side of the square, where Columbus went to sea, is now the deep-water wharf of the port. In the sea, a replica of Rania, a sailing ship sailing by Columbus, is moored for tourists to visit. The long coastline paved a unique colored stone pavement, separated from the charming blue ocean by a golden beach with a width of more than ten meters. Every other road, there is a couple stone seat facing the sea. Tall palm trees are planted on both sides of the road, and the green broad leaves sway with the sea breeze, as if sending a mysterious message to pedestrians. Walking in the flower street, there are French phoenix trees and palm hedges on both sides, and one flower stand after another makes people drown in the ocean of flowers. The performances of street artists, human sculptures dressed by living people, painters selling paintings and outdoor cultural salons also let people appreciate Barcelona from another angle. Of course, you can't forget to taste the cool and sweet "Barcelona holy water" under the elegant faucet at the end of the pedestrian street. It is said that you will want to come to Barcelona again after drinking.