Political propaganda demanded that these buildings should be made to impress as well as perform a public function.[citation needed] The Romans didn't feel restricted by Greek aesthetic axioms alone in order to achieve these objectives.[citation needed] The Pantheon is a supreme example of this, particularly in the version rebuilt by Hadrian and which still stands in its celestial glory as a prototype of several other great buildings of Eastern architecture. The same emperor left his mark on the landscape of northern Britain when he built a wall to mark the limits of the empire, and after further conquests in Scotland, the Antonine wall was built to replace Hadrian's Wall.