The Israel pavilion. The 'North' marker and shoreline indicate plot 5, the plot to the east of Morocco. Next to Japan.
על לא דבר.
This would have been a great addition.
However, it really surprises me that they would have even considered Israel considering all the controversy around the country itself. I imagine that it would in the modern day cause boycotts, or even worse, be a target for a terorrist attack simply due to the symbolism. On top of that, it would shock me if this were to ever be considered to be built again.