CREATE TABLE table_23491 ("Season" FLOAT, "Network" CLOB, "Host" CLOB, "Contestants" FLOAT, "Winner" CLOB, "Destination" CLOB)

Who won the season with Africa as its destination?
SELECT "Winner" FROM table_23491 WHERE "Destination" = 'Africa'
SELECT "Winner" FROM "table_23491" WHERE "Destination" = 'Africa'