Google Earth
Google Earth is a free program from Google that puts a planet's worth of imagery and other geographic information right on your desktop. View exotic locales as well as points of interest such as local restaurants, hospitals, schools, and more.
Download Google Earth (for both Mac and PC)
Download the Google Earth Version of the Maps on this Website
After you've downloaded and installed Google Earth, you can take advantage of some of its advanced features to view the maps on this site.
OpenLayers
OpenLayers is an open-source web mapping software. It is a project that includes the participation of software developers from around the world.
OpenLayers web mapping application including panoramas, parks, lighthouses, shipwrecks, beaches, parks, webcams, and NEXRAD radar (works in Mozilla Firefox).