Largest map online and interactive

The largest online interactive world map is Earth Viewer, which was acquired by Google in 2004. Relaunched as Google Earth in 2005 it is a virtual 3D globe of the entire Earth comprised of satellite data that can be browsed by home Internet users. Most of the land area of Earth is covered at 15 m (49 ft) resolution, with many areas having resolutions as high as 15 cm (6 in).