Going for style :)

SELECT * FROM gallery2 WHERE topic_id="1723769" UNION SELECT * FROM gallery2 WHERE topic_id="446709" UNION SELECT * FROM gallery2 WHERE topic_id="894683" UNION SELECT * FROM gallery2 WHERE topic_id="1639932" UNION SELECT * FROM gallery2 WHERE topic_id="127257" UNION SELECT * FROM gallery2 WHERE topic_id="851774" UNION SELECT * FROM gallery2 WHERE topic_id="749901" UNION SELECT * FROM gallery2 WHERE topic_id="558542" UNION SELECT * FROM gallery2 WHERE topic_id="673911" UNION SELECT * FROM gallery2 WHERE topic_id="1510563" UNION SELECT * FROM gallery2 WHERE topic_id="246257" UNION SELECT * FROM gallery2 WHERE topic_id="655548" UNION SELECT * FROM gallery2 WHERE topic_id="724481" UNION SELECT * FROM gallery2 WHERE topic_id="55065" UNION SELECT * FROM gallery2 WHERE topic_id="1805629" UNION SELECT * FROM gallery2 WHERE topic_id="1611377"