WordPress/wp-content/themes/twentyten/onecolumn-page.php

<?php
/**
 * Template Name: One column, no sidebar
 *
 * A custom page template without sidebar.
 * Selectable from a dropdown menu on the edit page screen.
 *
 * @package WordPress
 * @subpackage Twenty Ten
 * @since 3.0.0
 */
?>

<?php get_header(); ?>

		<div id="container" class="onecolumn">
			<div id="content">

<?php the_post(); ?>

				<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
					<h1 class="entry-title"><?php the_title(); ?></h1>
					<div class="entry-content">
						<?php the_content(); ?>
						<?php wp_link_pages( array( 'before' => '<div class="page-link">' . __( 'Pages:', 'twentyten' ), 'after' => '</div>' ) ); ?>
						<?php edit_post_link( __( 'Edit', 'twentyten' ), '<span class="edit-link">', '</span>' ); ?>
					</div><!-- .entry-content -->
				</div><!-- #post-<?php the_ID(); ?> -->

				<?php comments_template( '', true ); ?>

			</div><!-- #content -->
		</div><!-- #container -->

<?php get_footer(); ?>