Google Earth has made some cool improvements over the years. Most recently they added a timelapse feature where you can “go back in time” and view some eye opening, birds eye view images from all over the world. This timeline is limited since satellite imagery has only been around for a few decades or so.
On your next online expedition, take trip on Google Earth and see what’s changed over the years, you’ll be amazed. You can access the website at https://earth.google.com/ but I recommend installing the desktop application that includes some cool features. https://www.google.com/earth/versions/ Happy exploring!