What is Marble?
Marble is a Virtual Globe and World Atlas that you can use to learn more about Earth: You can pan and zoom around and you can look up places and roads. A mouse click on a place label will provide the respective Wikipedia article.
Comments and Reviews
Said about Marble as an alternative
It shows maps of Earth and the sky, also with 3D rendition of our planet.
it also features an offline world map in the form of a globe, with many different layers available, with old age maps and such.