Openverse
5.0 ex V stellae (secundum recensionem I)
Openverse est aperta-fonte search engine for open content elaborata ut pars Verbi Press project. Inquirit Creative Commona licentiati et publici dominii contentum ex justo diversorum auctorum. Progressio licentiatus sub MIT Licentiae est. Indices aperti super 600 decies centena millia rerum.
Basically, the site seems to be commercium-liberum, as there are nec elit neque index, neque ullae utilitates-oriented intentiones rei. Consilium secretum hic est: https://openverse.org/privacy