For those of you from Tanzania, if you are feeling nostalgic about Dar, then there's a series of videos filmed by an American guy in and around Dar. This guy even speaks pretty good Swahili so you can brush up on your own.
Various neighbourhoods like Upanga, Kariakoo, have been explored in different videos. You can see ho much Dar has changed. I am posting a link to one of the videos below. The whole series has been posted by Sabbatical. Would recommend you to watch a few. https://youtu.be/oJD2ypDywVc Tony