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_30911 ( "Round" real, "Date" text, "Opponent" text, "Home/Away" text, "Score (Collingwoods score is in bold)" text, "Result (includes margin)" text, "Venue" text, "Position on Ladder" text )

### Question ###
Which venue did collingsworth play essendon in when they had the 3rd position on the ladder?

### Accurate SQL ###

SELECT "Venue" FROM table_30911 WHERE "Opponent" = 'Essendon' AND "Position on Ladder" = '3rd'