I never had the opportunity to take any baseball stadium tours at Shea Stadium. I don't know if the team ever offered them or if they stopped offering them within the last few years. After seeing several games there, I grew to like some of its features but absolutely hated others.
But, whether or not you were a fan of Shea, the old park has been coming down since the end of the 2008 season. Here's a video clip of some of the demolition.