On the Google Earth Help Forum, we frequently get questions from users who aren't seeing something in Google Earth that they think they should be. Often, this problem has a simple cause: a particular layer is turned off.
Layers hold the key to most of the content you see in Google Earth and, since there are so many, its not always easy to remember which layers to toggle on or off to get the information that you want. Looking for the name of a street? Make sure you've turned on the Roads layer. Can't dive under the ocean? Chances are, it's because your Terrain layer is turned off. Sometimes, the layer you need isn't quite intuitive: If you're having trouble viewing the Titanic, it's probably because you need to turn on your 3D Buildings layer.
So, when it seems like there's something missing, the Layers menu can hold the solution. And while you're at it, why not check out a layer that you haven't seen yet? The wealth of information that's available might surprise you.