The United States State Department has an exceptional site that hosts many videos about the United States that are accessible (and closed-captioned) to English Language Learners. They’re so good that I believe I’ll be highlighting this resource on a future “The Best…” list. It’s called Telling America’s Story Videos.
In addition, they have an equally good series of slideshows in their Photo Gallery.
I’ve placed links to both resources in various areas of my website.