https://www.youtube.com/user/smarthistoryvideos/featured
We are big fans of the youtube channel, Smarthistory. They have over 3000 videos and essays about exhibits at museums and cultural sites all around the world. They are all short, so you can pull up just those videos related to where you are going and what you or your kids might like. They are usually filmed on location in the actual museums so you can see where you’re headed.