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_25181 ( "Conference" text, "Regular Season Winner" text, "Conference Player of the Year" text, "Conference Tournament" text, "Tournament Venue (City)" text, "Tournament Winner" text )

### Question ###
How many locations are listed for the Big 12 Conference?

### Accurate SQL ###

SELECT COUNT("Tournament Venue (City)") FROM table_25181 WHERE "Conference" = 'Big 12 Conference'