Today we say happy 15th birthday to Disney's Animal Kingdom. This park opened on Earth Day, April 22nd, 1998. It is the largest of the Walt Disney World parks at nearly 500 acres. When it opened, there were 5 attractions, 9 exhibits, 12 live entertainment shows, 8 food locations, and 11 merchandise locations. It cost $800 million to build and there have been many additions over the past 15 years. I took this panorama of Discovery Island back in October. I had to include the park's icon, The Tree of Life, in this 15th birthday tribute!