St. Stephen's Cathedral, Vienna
In the Gothic Revival style he built in Vienna the , Saint Othmar's Church (in German: "Sankt Othmar unter den Weißgerbern", literally "Saint Othmar among the White Tanners") in the 3rd district (Landstraße) and that of the Brigittines. He also built a school, the Akademisches Gymnasium, with a Gothic facade and the memorial building erected on the site of the amphitheatre that had been destroyed by fire. The last mentioned building was in Venetian Gothic. A large number of small ecclesiastical and secular buildings in Austria and Germany were designed by him. His last work was the restoration of the cathedral in Pécs in Hungary. His chief fame however he gained by his restoration of St. Stephen's Cathedral, Vienna. He took down the spire and worked on its rebuilding up to 1872.