Earthcam allows access to hundreds, if not thousands, of webcams showing images from around the world.

You can click on a world map to identify which ones you want to see.  You can also create your own list of favorite webcams.  Both options would work in a classroom as part of a geography class.  The site is certainly accessible to all levels of English Language Learners. 

 From what I can tell, there seems to be some screening to ensure they’re appropriate locations.

I’ve placed the link on my Geography page under Sites That Cover Many Areas.