sentences:  Before the 20th century, a row of houses separated Stephansplatz from Stock-im-Eisen-Platz, but since their destruction, the name Stephansplatz started to be used for the wider area covering both.To the west and south, respectively, run the exclusive shopping streets Graben (literally "ditch") and Kärntner Straße ("Kärnten" is the German for Carinthia).Opposite the Stephansdom is the Haas-Haus, a piece of striking modern architecture by Hans Hollein.