The premise is simple - Google Earth is an online, 3D globe and you can use it for the exact purpose you might use a traditional globe - marveling at our planet, finding geographical locations, and getting a sense of the scale of the planet on which we live.
It’s been around since 2001 and has seen many, many updates and a lot of new tech that make it the amazing tool it is today.
Google Earth is a classic Google program that renders the Earth in 3D based on extensive satellite imagery.
Despite a few problems, Google Earth is still totally amazing