The History Underground is a YouTube Channel where the content creator travels to various historical sites and lectures about them while videoing the historical site. Such videos will show some interesting primary resources and learn about particular places and eras of history. These videos may help shed light or even provide a true stepping stone to any researcher who may want to dive deeper into any particular historical era.
The following is from the about section of The History Underground YouTube Page.
"It's no secret that our society suffers from a lack of historical knowledge. That's a problem, so we're on a mission to unearth some of the interesting people and stories from history and equip people with the resources to share that history with others."