Here you can see computer models and panoramic pictures of sites from various countries. You will see short films for their building phases throughout time, or simply look at them from a helicopter. In some of them you will be able to make your own walk, the same as in a computer game. To see them, you have to install two small programs in your computer. For details – search for the assistance by the Explorer. The loading of some of the models could last a bit long – you have to be patient.