Display a widget somewhere on a site (this example shows it before the footer)

functions.php

<?php
//* Don't include the opening php tag

//* Display a widget area before the footer
add_action( 'genesis_before_footer', 'prefix_show_your_widget_area' );
function prefix_show_your_widget_area () {
  genesis_widget_area( 'your-widget-area', array(
	  'before' => '<div>', // markup before the widget
	  'after'  => '</div>', // markup after the widget
  ) );
}