While it boasts one billion users, Google Maps has recently seen defections by some key developers and partners.
The revamping comes as reports suggest Apple may abandon Google Maps next week at its annual developer conference.
They suggest Apple may announce its own mapping application to replace Google Maps on its smartphones and tablets.
To counteract any negative publicity, Google executives held a media event on Wednesday in San Francisco to preview new mapping features and trumpet a decade of achievements in digital mapping, including its use of satellite, aerial and street-level views.
Among the stand-out features were 3D enhancements to Google Earth, a portable device for taking “street view” panoramic photos and offline access to Google Maps on Android phones.