"A Google Earth experiment" in beta, perhaps not updated since 2015 (copyright date).
It is a story map application that uses a web browser. It doesn't require the installation of the Google Earth client like the tour feature within Google Earth.
Allows inclusion of photos and videos.
Can make your tour private or you can share it.
Requires a Google account.
For now, please refer to our library guide on Google Earth (in need of updating).
Note that Google Earth is client software that must be downloaded to your local computer. The library guide includes more details.
Google Earth Tour Builder