The Mixer Unity Sample Code demonstrates how to add interactive features to streaming video game applications. For a detailed tutorial, learn more at https://github.com/mixer/interactive-unity-plugin/wiki/Getting-started
There's no doubt that Wikipedia is a giant store of information. And yes, they have an API, but the data isn't exactly structured. But that didn't stop Jim Blackler, who created Quizipedia, a fun game based off of Wikipedia entries.
Apple recently announced a new API that allows third party websites and apps to embed Live Photos. Live Photos has been around since 2015; however, embedding Live Photos outside of a Mac or iOS environment has been somewhat challenging to date. The Live Photos API should alleviate that difficulty.