Archigram drew cities that stand up and walk to wherever they are needed. This one is 132 metres long and walks on eight telescopic legs. Watch it arrive, then take the helm and walk through the rooms inside while it keeps moving.
Headphones help. Press R at any time to watch the intro film.
The pilot will let you drive. The city keeps walking at whatever speed you leave it on, so you can get up and walk through the rooms while it moves.