The DEMO version only includes 4 pages:
http://rudolfdiesel-danke.de
http://rudolfdiesel-danke.de/content.html
http://rudolfdiesel-danke.de/content/index_page_biographie.html
http://rudolfdiesel-danke.de/content/index_page_galerie.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 to buy a fully functioning site.
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