Making waterfalls

SELECT * FROM gallery2 WHERE topic_id="1063126" UNION SELECT * FROM gallery2 WHERE topic_id="1171905" UNION SELECT * FROM gallery2 WHERE topic_id="453183" UNION SELECT * FROM gallery2 WHERE topic_id="1265476" UNION SELECT * FROM gallery2 WHERE topic_id="1635385" UNION SELECT * FROM gallery2 WHERE topic_id="1247573" UNION SELECT * FROM gallery2 WHERE topic_id="1604528" UNION SELECT * FROM gallery2 WHERE topic_id="1179604" UNION SELECT * FROM gallery2 WHERE topic_id="555839" UNION SELECT * FROM gallery2 WHERE topic_id="1072189" UNION SELECT * FROM gallery2 WHERE topic_id="1469736" UNION SELECT * FROM gallery2 WHERE topic_id="236096" UNION SELECT * FROM gallery2 WHERE topic_id="1546115" UNION SELECT * FROM gallery2 WHERE topic_id="199279" UNION SELECT * FROM gallery2 WHERE topic_id="1469352" UNION SELECT * FROM gallery2 WHERE topic_id="80931"