Photo quiz answer

I meant to put these photos up a couple of weeks ago, when "Me" responded with the correct answer. Better late than never ...

P.S.: I don't know what I am doing wrong, but I don't understand why WP fails to align these photos! :-(

<a href="http://porcupyn.org/imgs/2009/11/img_4795.jpg"><img class="alignleft size-medium wp-image-1234" title="IMG_4794" src="http://porcupyn.org/imgs/2009/11/img_4794.jpg?w=300" alt="" width="300" height="225" /></a>
<a href="http://porcupyn.org/imgs/2009/11/img_4795.jpg"><img class="alignleft size-medium wp-image-1234" title="IMG_4795" src="http://porcupyn.org/imgs/2009/11/img_4795.jpg?w=300" alt="" width="300" height="225" /></a>
<a href="http://porcupyn.org/imgs/2009/11/img_4797.jpg"><img class="alignleft size-medium wp-image-1234" title="IMG_4797" src="http://porcupyn.org/imgs/2009/11/img_4797.jpg?w=300" alt="" width="300" height="225" /></a>

<a href="http://porcupyn.org/imgs/2009/11/lasvegaspanoramic.jpg"><img class="alignleft size-medium wp-image-1244" title="las vegas panoramic" src="http://porcupyn.org/imgs/2009/11/lasvegaspanoramic.jpg?w=300" alt="" width="300" height="30" /></a>