Take the Tour of CNN is a MUST as the Americans say. They are the biggest studios of CNN and they are open 24/7, 365 days a year. The guided tour takes about 1 hour and security is tight, prohibiting taking photos in some of the studios. They have a little history of Turner Television and CNN news and in that minute the news is transmitted in multiple languages, as CNN is in many countries. You can see the big touch screens updated minute by minute, pre-recorded programs and newsroom journalists who have to write scripts to read out loud and Live. It is a megastructure that ends in a souvenir shop.