Several pocket countries in Europe are not to be underestimated, as is Luxembourg. It is the only Grand Duchy in the world and the country with the highest per capita income in the world. There is the world's largest steel group, the world's second largest radio and television company, and the Schengen Agreement is here. The capital of Luxembourg, the area is small, but bustling and bustling, typical European architecture is so soft under the winding Alzette River. From Belgium, Germany, France, take the European Railway to Luxembourg, take the Central Railway Station, walk about 10 minutes to reach the city center, where the core attractions are gathered. Figure 1