List all attachments of a post or page in Wordpress.

get-attachments.php

<?php
		$attachments = get_posts( array(
			'post_type' => 'attachment',
			'posts_per_page' => -1,
			'post_parent' => $post->ID,
			'exclude'     => get_post_thumbnail_id(),
			'orderby' => 'menu_order',
			'order' => 'ASC'
		) );

		if ( $attachments ) {
			foreach ( $attachments as $attachment ) {
				$class = "post-attachment mime-" . sanitize_title( $attachment->post_mime_type );
				$thumbimg = wp_get_attachment_image_src( $attachment->ID, 'full');
	?>
		<li><img src="<?php echo $thumbimg[0]; ?>" /></li>
	<?php
			}

		}
	?>