Stacked

SELECT * FROM gallery2 WHERE topic_id="729466" UNION SELECT * FROM gallery2 WHERE topic_id="911498" UNION SELECT * FROM gallery2 WHERE topic_id="1201899" UNION SELECT * FROM gallery2 WHERE topic_id="1606378" UNION SELECT * FROM gallery2 WHERE topic_id="1179493" UNION SELECT * FROM gallery2 WHERE topic_id="272233" UNION SELECT * FROM gallery2 WHERE topic_id="1136451" UNION SELECT * FROM gallery2 WHERE topic_id="1234218" UNION SELECT * FROM gallery2 WHERE topic_id="855088" UNION SELECT * FROM gallery2 WHERE topic_id="600920" UNION SELECT * FROM gallery2 WHERE topic_id="947080" UNION SELECT * FROM gallery2 WHERE topic_id="1272939" UNION SELECT * FROM gallery2 WHERE topic_id="734181" UNION SELECT * FROM gallery2 WHERE topic_id="1612110" UNION SELECT * FROM gallery2 WHERE topic_id="138367" UNION SELECT * FROM gallery2 WHERE topic_id="1643366"