If you want a world physical map for quick reference try this app!

You can study and learn the most important geographic regions and cities.

Features:

• German Language!.
• World Physical map with most important cities.
• It is not required an internet connection to explore the world map. You can see it anytime offline.
• Zoom control with gestures.
• World map reference with a lot of geographic points: rivers mountains lakes seas islands peninsulas capes gulfs straits canals plains depressions deserts highest and lowest points on earth surface and the most important cities.

Try this free app for android you will have a complete world map reference in your device.