Haus am Horn is a local house in Weimar designed by German architect and painter Georg Muche. It was built in 1923 AD, as it was the first building based on Bauhaus principles in design, and it revolutionized the thought in the field of architecture and construction in the 19th century The twentieth, which is a simple building with a cubic design containing four rooms. The building was included in the UNESCO World Heritage List in 1996 AD as it belongs to the Bauhaus School of Design.