The Sisi Chapel was built on the occasion of the marriage of Empress Elisabeth and Emperor Franz Joseph I of Austria on April 24, 1854, in Vienna.
The chapel was intended to serve both as a memorial to the historic event and a gravesite for Freiherr von Sothen and his wife Franziska.
In 1997, the "Caucus Wood" acquired a large part of the Am Himmel area and purchased the chapel for 3,500 Euros from Caritas in 2002.
After several years of work, which required a total of 1.1 million Euros partially financed by the Vienna Old Town Preservation Fund, the chapel was completed in 2005.
In addition, fourteen monitors recessed in the wall stage a kind of ordeal suffered by nature through the interventions of man.