Zürich’s neo-Renaissance Hauptbahnhof is one of the largest and busiest train stations in Europe. The triumphal arch, built in 1871, helped proclaim Zürich as Switzerland’s industrial capital. On the top of the arch, you see the central figure of Helvetia. She’s named after the Celtic Helvetii tribe, the original inhabitants of Switzerland, who were conquered by the Romans. Incidentally, the official title of Switzerland is Confoederatio Helvetica. That’s why the license plates say CH, not SW. (Using the Latin title helps avoid having to string together all the different names for the country in each of the four official languages.)