Grenfell Street, is a major street in the north-east quarter of the centre of the city of Adelaide, the street runs west-east starting from King William Street, part of a major arterial road that traverses the CBD and centre of Adelaide, and the capital of which location?
South Australia
Title: Grenfell Street, Adelaide
Passage: Grenfell Street ( ) is a major street in the north-east quarter of the centre of the city of Adelaide, South Australia.  The street runs west-east from King William Street to East Terrace.  On the other side of King William Street, it continues as Currie Street.  Its intersection with Pulteney Street is encircled by Hindmarsh Square.
Title: Mainzer Straße (Wiesbaden)
Passage: Mainzer Straße is a major arterial road in Wiesbaden, Germany, running from Ringroad near central station at the north end, south towards as continuation of Bundesautobahn 671 through the suburb of Südost.  The Mainzer Straße is a four lane street and part of Bundesstraße 263.  The street is with the Schiersteiner Straße and Ringstraße the busiest southern arterial road in Wiesbaden and is in the peak-hour traffic often congested.
Title: King William Street, Adelaide
Passage: King William Street is the part of a major arterial road that traverses the CBD and centre of Adelaide (the capital of South Australia).  It was named by the Street Naming Committee on 23 May 1837 after King William IV, the then reigning monarch, who died within a month.  King William Street is approximately 40 m wide, and is the widest main street of all the Australian State capital cities, which are significantly narrower by comparison.  It is historically considered one of Adelaide's high streets, for its focal point of businesses, shops and other prominent establishments.
Grenfell Street, Adelaide King William Street, Adelaide