i wanna present you the greatest building complex you have ever seen.
As you can see, the buildings were built as realistically as possible. The complex includes the Twin Towers, which were destroyed on 9/11, the marriot hotel WTC 3, the WTC 7 building and the smaller building parts WTC 4-6.
If you go inside the twin towers, you are able to use 4 elevators to move up and down through the building.
If there's a fire or something, you can push the "Alert Button". You will find this Button in every single Floor.
If you have pushed this button, the internal alarm system will be triggered and the building will be evacuated automatically.