Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_71509 ( "Date" text, "Visiting Team" text, "Final Score" text, "Host Team" text, "Stadium" text )

### Question ###
At what stadium did the Green Bay Packers play an away game?

### Accurate SQL ###

SELECT "Stadium" FROM table_71509 WHERE "Visiting Team" = 'green bay packers'