Just posting a few links to sites that collect visually interesting satellite images of Earth from above. I imagine many of these could spur some valuable conversations with children or adults.
Daily Overview is a great, regularly updated site with visually stunning satellite photos from around the world. The site's Juxtapose feature presents before-and-after comparisons of locations that have changed significantly.
Google's Earth Engine is a zoomable photo composite of the Earth that can show between 1984 and today.