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_name_18 ( venue VARCHAR, winner VARCHAR, year VARCHAR )

### Question ###
Where was the 1966 competition with a winner of Gary Cowan held?

### Accurate SQL ###

SELECT venue FROM table_name_18 WHERE winner = "gary cowan" AND year = "1966"