More to play with ;)

SELECT * FROM gallery2 WHERE topic_id="1324507" UNION SELECT * FROM gallery2 WHERE topic_id="1040012" UNION SELECT * FROM gallery2 WHERE topic_id="511695" UNION SELECT * FROM gallery2 WHERE topic_id="1308056" UNION SELECT * FROM gallery2 WHERE topic_id="87720" UNION SELECT * FROM gallery2 WHERE topic_id="55606" UNION SELECT * FROM gallery2 WHERE topic_id="1292560" UNION SELECT * FROM gallery2 WHERE topic_id="577888" UNION SELECT * FROM gallery2 WHERE topic_id="517137" UNION SELECT * FROM gallery2 WHERE topic_id="712359" UNION SELECT * FROM gallery2 WHERE topic_id="726807" UNION SELECT * FROM gallery2 WHERE topic_id="1224526" UNION SELECT * FROM gallery2 WHERE topic_id="840277" UNION SELECT * FROM gallery2 WHERE topic_id="250845" UNION SELECT * FROM gallery2 WHERE topic_id="100810" UNION SELECT * FROM gallery2 WHERE topic_id="15646"