Today is the 30th anniversary of Epcot at Walt Disney World. One of the most fascinating things to me is the journey inside of Spaceship Earth that takes you around and around inside the ball with Dame Judith Dench as your guide. (At least in English she is your guide). This video shows how Spaceship Earth was built. You can see the path of the tracks before they put the outside on. I still say it is impossible to take a bad picture of this icon.