Portugal's public broadcaster's free educational video archive, in European Portuguese.
Details
Thousands of short documentary and explainer videos from RTP's archive, organised by school subject — history, science, literature, Portuguese language itself — with accompanying text. It is made for Portuguese schoolchildren rather than foreign learners, which is the point: real European Portuguese, clearly enunciated, on topics concrete enough to follow. Free and not geo-blocked like RTP Play, but there is no vocabulary support of any kind, so bring a dictionary.