National Geographic has a great series of YouTube videos called National Geographic 101 which include videos like Ancient Rome 101. The video provides an excellent introduction to the origin, rise, and fall of the Roman Empire. The length and substance of the video makes it an ideal candidate for inclusion in an EDpuzzle lesson.
TED-Ed has a good lesson that you can use as a follow-up to Ancient Rome 101. A Glimpse of Teenage Life in Ancient Rome is a TED-Ed lesson developed by Ray Laurence from the University of Kent. The video and its associated questions feature the story of seventeen year old Lucius Popidius Secundus.