Classy

SELECT * FROM gallery2 WHERE topic_id="720618" UNION SELECT * FROM gallery2 WHERE topic_id="1646261" UNION SELECT * FROM gallery2 WHERE topic_id="1088483" UNION SELECT * FROM gallery2 WHERE topic_id="1147894" UNION SELECT * FROM gallery2 WHERE topic_id="1475224" UNION SELECT * FROM gallery2 WHERE topic_id="556511" UNION SELECT * FROM gallery2 WHERE topic_id="1446774" UNION SELECT * FROM gallery2 WHERE topic_id="1156705" UNION SELECT * FROM gallery2 WHERE topic_id="4540" UNION SELECT * FROM gallery2 WHERE topic_id="297794" UNION SELECT * FROM gallery2 WHERE topic_id="1173402" UNION SELECT * FROM gallery2 WHERE topic_id="1679988" UNION SELECT * FROM gallery2 WHERE topic_id="455764" UNION SELECT * FROM gallery2 WHERE topic_id="1689871" UNION SELECT * FROM gallery2 WHERE topic_id="1500240" UNION SELECT * FROM gallery2 WHERE topic_id="184593"