CREATE TABLE table_51912 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Where did Fitzroy play as the home team?
SELECT "Venue" FROM table_51912 WHERE "Home team" = 'fitzroy'
SELECT "Venue" FROM "table_51912" WHERE "Home team" = 'fitzroy'