The DEMO version only includes 4 pages:
https://www.capitaldistricthabitat.org
https://www.capitaldistricthabitat.org/index_option-com_content-task-view-id-1-Itemid-2.html
https://www.capitaldistricthabitat.org/index_option-com_content-task-view-id-2-Itemid-3.html
https://www.capitaldistricthabitat.org/index_option-com_content-task-view-id-3-Itemid-4.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