A few years ago I made http://projections.charemza.name/ http://projections.charemza.name/ ... click and drag a Mercator map to rotate the world "before" the

A few years ago I made http://projections.charemza.name/ http://projections.charemza.name/ ... click and drag a Mercator map to rotate the world "before" the Mercator projection is applied, to see a whole range of "equivalent" projections. None of them look like the world to me, but they're just as valid.