I am only occasionally active in the English Wikivoyage and then only about Greece and Kenya. From time to time I transfer content from the much more extensive German Wikivoyage in these areas to the English pages, which unfortunately often leads to misunderstandings. Many things are handled quite differently in the different language versions.
This website uses the Wikivoyage API to get and display all the information you see. This is the MediaWiki API, which is a general API for accessing data from Wikimedia projects. You can find information about it here: MediaWiki API.