The building called the 'Iron Log House' is one of the nicest buildings in Győr. It hosts the Patkó Imre collection of the Xantus János Museum. The house belonged to the chapter of Győr until the end of the 16th century. In 1833, the tradesman Zittrich Mátyás bought it. He put out an iron log under the balcony as the sign similar to those in Vienna.