Take a three-dimensional journey through 28 of the United States National Parks. This 3D presentation of the beauty and natural wonder of America's greatest treasures was created especially for the new iPad. Photographed in both 2D and 3D, these 800 pictures portray the best that the U.S. Park System has to offer. From Arizona's Grand Canyon to Hawaii's Volcanoes, these colorful images become more eye-catching in real 3D. Red/cyan glasses are required to view them as 3-D though each scene is alternately presented in normal two dimensions as well.A map, a thumbnail illustration and an introductory description of each park beckons you to make the virtual journey into Yosemite, Yellowstone and dozens of nature's best places on the planet. Leisurely study each picture or play the slideshow at a speed of your choice. Either way, you will better appreciate the national treasure that our parks represent.