The DEMO version only includes 4 pages:
http://unacasasullaroccia.com
http://unacasasullaroccia.com/about.html
http://unacasasullaroccia.com/page/2.html
http://unacasasullaroccia.com/2016/12/25/non-si-pensi-che-sia-stata-poca-la-misericordia-buon-natale.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page