In August, I went to Amsterdam to visit. It was the largest city in the Netherlands. Because it was a work visit, I was in a hurry. I took the time to simply walk. The flowering period was over. I mainly looked at the buildings and streets in the urban area. The canal is very developed, crisscrossed, there are some windmills, like fairy tale world, multimedia display in the museum virtual see the blooming flower fields, many new neighborhoods and suburban residential areas. The Amsterdam River flows from the city, once the intersection of European water transport. Various bridges are inconspicuous. It is said that the interior of the city is very low, many places are below altitude, and water is blocked by dikes. It is called "Venice of the North". Since the country is built by the sea, there are many people and few places, and there are many "boat houses". It is very interesting to use wooden stakes to build foundations.