CREATE TABLE table_68756 ("Date" TEXT, "Visiting Team" TEXT, "Final Score" TEXT, "Host Team" TEXT, "Stadium" TEXT)

At which stadium did the Los Angeles Raiders play as the visiting team?
SELECT "Stadium" FROM table_68756 WHERE "Visiting Team" = 'los angeles raiders'
SELECT "Stadium" FROM "table_68756" WHERE "Visiting Team" = 'los angeles raiders'