In the old city of Valparaiso, there is almost no flat land, and the mountains are directly connected with the sea. All the buildings in Wacheng have to be built on the mountain. Because the mountain is steep, almost every family's roof is the same as the neighbor's foundation. Nie Luda, a famous Chilean poet, lived in this town for many years. His former residence has five floors, but each floor is directly connected with the ground. They are neither a one-story building nor a one-story bungalow, but five houses are connected together at a right angle of 45 along the terrain. Looking at the city from the port pier, you can see that all the houses are from the lowest place by the sea, and they spread from the hillside to the mountain layer by layer. Nie Luda once wrote in his poem that Valparaiso is "a city sinking into the sky". Due to the steep terrain of Wacheng, the unique public transportation system-the rail cable car began to develop in 19.

For a long time, residents live up the mountain and work down the mountain. The flow of the whole city is vertical, and the cable car is the main artery of vertical flow. Nowadays, many families have cars. Although the mountain road is steep, people always like to drive home. The cable car is in danger of disappearing due to the decrease of passengers and operating income. With the development of science and technology and economy, cars are becoming more and more popular, just like the opening of Panama Canal, which once again tests Wacheng.

Another feature of Wacheng is colorful. Most of the houses here are not the houses of the rich, but the ordinary houses of fishermen and dockers. Interestingly, every family paints their roofs and walls in various colors, red, orange, yellow and green. People here have such a hobby that they paint their houses so brightly. First of all, in the past, ships passing through Valparaiso port had to load, unload, supply or repair here, and often needed to be painted with new paint. People who work on the docks will take the remaining paint home to beautify their houses.