49. Schlössi Forum Schlossplatz, Aarau (AG)

This castle is the oldest building in Aarau. It was in fact built during the 12th century. It includes a museum of furnishings with pieces from 1550 to 1850. This building was erected in 1796 as a result of an extension of the already existing villa. It is in this enchanting framework that in 1798 the helvetic directory met for the first time. This building can therefore be considered the first Federal Government House of Switzerland.