There is a lot to see in Vienna! If you come to Vienna, you should see some important sights. These include, for example, the Vienna Parliament on Vienna's Ringstraße. It is one of the most important buildings in the city. The Planetarium, on the other hand, offers an unforgettable view of the starry world. Equally impressive is the prestigious Vienna International Centre (VIC), one of four UN headquarters along with New York, Geneva and Nairobi.