Use interactive GIS mapping services to shown a visual representation of statistics over different geographic areas. Learn how crime rates vary by city, see a mapped real estate analysis, and more... 

http://www.policymap.com

Maps.com is a premier online source of maps, atlases, globes and other mapping products and solutions. Since 1991, when it was founded as Magellan Geographix, Maps.com has distinguished itself through its comprehensive range of high-quality products, its easy ordering system and its commitment to impeccable customer service. Individuals, schools and businesses can easily find what they need through Maps.com's extensive online catalog. Those with more specific needs can make use of the site's first-rate custom mapping services to get the solutions that they need at affordable prices. From travel maps to blank maps, Maps.com has something for everyone... 

http://www.maps.com/

Provides directions, interactive maps, and satellite/aerial imagery of many countries. Can also search by keyword such as type of business... 

https://www.google.com/maps

Google Moon provides a photographic map of the equatorial region of the satellite, Moon with pan and zoom capability, showing locations of the Apollo landings along with 3D models of rovers and landers... 

http://www.google.com/moon/

Scratch Map World poster, scratch off where you’ve been to reveal detailed geography of countries, states, Islands, Oceans and more. Plan a trip of a lifetime, perfect for frequent flyers, globetrotters and the intrepid traveller... 

http://www.scratchmap.org

A very informative and photographic map of the red planet, Mars. Learn more on Google Mars... 

http://www.google.com/mars