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_11 ( venue VARCHAR, round VARCHAR )

### Question ###
What venue was round 20 held at?

### Accurate SQL ###

SELECT venue FROM table_name_11 WHERE round = 20