Terrace, 15th century. Construction at the site from at least the 14th century, with replastering and redecoration continuously to the present.
From left to right:
Perspective from base.
Source: Wikimedia Commons / Public Domain
Source: Flickr / Photo: Marc oh! / CC2.0 BY-ND
Image rights: Source: Wikimedia Commons, Fotopedia, Flickr, see More Info