I so, so love those old pictures from the US during the 50's... But these...
Not only these were taken nowadays, but moreover, they actually are 1/24th scale models!
They're made by Michael Paul Smith, whose working process you can see here. Quite impressive...
More pictures to see on his Flickr and SmugMug sets.
via Neatorama(pictures from the above setup are available here :1,
2,
3,
4)