Based on "Michael Brein's Guide to Madrid," Madrid Envi helps you get to the city's main points of interest easily and cheaply using Madrid's excellent Metro system. From the Prado and Reina Sofia art museums to the Royal Palace to the central Puerta del Sol and Plaza Mayor to the nearby towns of Toledo and Segovia, with Madrid Envi you can:- View basic information on over 50 top points of interest, including "Must See" attractions- Find the nearest Metro stations, and which lines to take- See how to exit the station and walk to the attraction- See a photo so you know what to look for- Note nearby points of interest- View the attraction's location, as well as your own, in the Maps application- Easily pull up the attraction's Web site for additional details- View the official Madrid Metro map in multiple formatsAll Madrid Envi's content is built into the application, so access is instant and you don't have to worry about getting on the Internet underground in a foreign city. The product is based on the acclaimed iEnvision 2.0 Web-image browser, so everything is full-screen, clear, organized and multi-touch. And since it's also based on the Michael Brein travel guide series, it's the simplest way to get around the world's big cities.Madrid Envi is part of our series of iPhone-based travel guides to cities via subway and other forms of mass transit. Many other guides are now available, including for London, Paris, DC, Chicago and Hawaii.