There's "Well there's your problem". In each episode, the hosts break down an engineering disaster. The episodes are one to several hours long each, and they are thorough, entertaining, and you learn a ton.
There's also a video version that contains slides with pictures and graphs.
I would suggest as a starter episode 139, The impossible railroad, which I thought was a fun one. Or 146 on the Mount Everest, that was eye-opening. Those are the recent ones that stand out to me.