IKI Vienna - International Culture Institute, IKI Language Academy Vienna is one of the best educational institutions for German worldwide. 4-week intensive courses from 395 Euro, 10-week evening courses 420 Euro. There are 13 course levels which are taught, from A1.1 for beginners to C2 for (very) advanced students. IKI Language Academy is located directly across from the Vienna State Opera House. From here, you walk just a few minutes to the most important signature points of the city, such as the Vienna Naschmarkt, Kärtnerstrasse, the Gr.