Start the YouTube 3D video player. Click on the 3D icon in the menu bar to select 2D or your choice of stereo 3D formats.
There was a time when every major city had fleets of Checker A8 (though more or less identical to the Marathon sold to private owners, the Checker taxis had different names). Manhattan was flooded with the boxy yellow cars. Today you have to go to a museum or a car show to see one.