The Hundertwasserhaus is an apartment house in Vienna, Austria, built after the idea and concept of Austrian artist Friedensreich Hundertwasser with architect Joseph Krawina as a co-author. This expressionist landmark of Vienna is located in the Landstraße district on the corner of Kegelgasse and Löwengasse. The house was built between 1983 and 1985 according to the ideas and concepts of Hundertwasser with architect Univ.-Prof. Joseph Krawina as a co-author and architect Peter Pelikan as a planner. Within the house there are 52 apartments, four offices, 16 private terraces and three communal terraces, and a total of 250 trees and bushes. The Hundertwasser House is one of Vienna's most visited buildings and has become part of Austria's cultural heritage.