The equestrian statue of Nicholas I, standing in the centre of St. Isaac's Square, was the work of sculptor Piotr Klodt after a design by Montferrand, and was the latter's last work. The tsar is shown in his uniform from the cavalry regiment. The pedestal is decorated with high-reliefs evoking episodes from his reign. The statue is above all outstanding for its remarkable equilibrium: the horse is supported in only two places.