A must see when visiting London. I have been here countless times and always get a real buzz out of the vast array of natural history that is on display and all for free.
The Wildlife Photographer of the Year, runs from October to March, there is an admission fee, but I thoroughly enjoy this exhibition.
You can definitely lose yourself for hours in this museum, reading the encyclopaedic information accompanying the exhibits will leave you far more knowledgeable than whence you arrived, I usually come away feeling a whole lot smarter than before I entered this fascinating world.
The Tyrannosaurus Rex (love this bit) is the giant among Dinosaurs and the Natural History Museum is a giant among museums, in my opinion, the biggest and best in the world!