What animal appears on the exterior facade oa laon cathedral?

The animal that appears on the exterior facade of Laon Cathedral is the lion.

While the entire facade is decorated with a variety of sculptures, the lions are particularly prominent. They appear in several locations, including:

* The portal: Two large lions flank the central portal, symbolizing strength and vigilance.

* The tympanum: Lions are depicted within the scenes of the Last Judgement, often representing the power of God.

* The gallery: Lions are also incorporated into the decorative gallery above the portal.

So, while Laon Cathedral features many animals, the lion is a prominent symbol featured on the exterior facade.