Double Trouble

SELECT * FROM gallery2 WHERE topic_id="1605664" UNION SELECT * FROM gallery2 WHERE topic_id="999674" UNION SELECT * FROM gallery2 WHERE topic_id="39351" UNION SELECT * FROM gallery2 WHERE topic_id="156249" UNION SELECT * FROM gallery2 WHERE topic_id="669265" UNION SELECT * FROM gallery2 WHERE topic_id="1444672" UNION SELECT * FROM gallery2 WHERE topic_id="1193856" UNION SELECT * FROM gallery2 WHERE topic_id="787914" UNION SELECT * FROM gallery2 WHERE topic_id="1356897" UNION SELECT * FROM gallery2 WHERE topic_id="729592" UNION SELECT * FROM gallery2 WHERE topic_id="1497483" UNION SELECT * FROM gallery2 WHERE topic_id="665921" UNION SELECT * FROM gallery2 WHERE topic_id="54520" UNION SELECT * FROM gallery2 WHERE topic_id="735743" UNION SELECT * FROM gallery2 WHERE topic_id="1225915" UNION SELECT * FROM gallery2 WHERE topic_id="355021"