Anyone aware of any website, book, or video that you consider a really good resource for Mishkan and Beis Hamikdash study? It would optimally include diagrams, video animations, and other interactive stuff. And why do you recommend it?
I enjoy my copy of Carta’s Illustrated Encyclopedia of the Holy Temple in Jerusalem. It does a great job of helping the reader picture the architecture of the Mishkan and Beit Hamikdash and the service in them. I frequently refer to it for illustration when discussing these topics.
I also have enjoyed the novels I've read from the "Naftali in the Mikdash" series by Yaakov Meir Strauss. They try to give you a sense of what it was like to live in Israel when the Beit Hamikdash stood. Sometimes, the Halachic exposition is a bit forced, but if you don't mind the fact that you're learning the Halachot as you go a long, it's an enjoyable educational experience.
moshiach.com has an interactive tour of the Beis Hamikdash.
One resource Here even though he seems to get the Keilim wrong: