Stacked

SELECT * FROM gallery2 WHERE topic_id="1529853" UNION SELECT * FROM gallery2 WHERE topic_id="1286169" UNION SELECT * FROM gallery2 WHERE topic_id="909068" UNION SELECT * FROM gallery2 WHERE topic_id="958373" UNION SELECT * FROM gallery2 WHERE topic_id="1221694" UNION SELECT * FROM gallery2 WHERE topic_id="512295" UNION SELECT * FROM gallery2 WHERE topic_id="1173048" UNION SELECT * FROM gallery2 WHERE topic_id="1445685" UNION SELECT * FROM gallery2 WHERE topic_id="456150" UNION SELECT * FROM gallery2 WHERE topic_id="1660745" UNION SELECT * FROM gallery2 WHERE topic_id="136435" UNION SELECT * FROM gallery2 WHERE topic_id="415403" UNION SELECT * FROM gallery2 WHERE topic_id="896047" UNION SELECT * FROM gallery2 WHERE topic_id="424412" UNION SELECT * FROM gallery2 WHERE topic_id="344977" UNION SELECT * FROM gallery2 WHERE topic_id="388621"