Not the best of the world, but worth mentioning: São Paulo's 9 de Julho Avenue.
Not NYC's heights, but for the whole landscape, with a very deep valley with highrises going up a 50 m hill, with all shapes and sizes with some good examples of modernist architecture.
I also like this very dystopian, futurist, unsettling, non-descriptive urban environment:
https://www.google.com/maps/@-23.560...7i16384!8i8192
https://www.google.com/maps/@-23.561...!7i5376!8i2688
https://www.google.com/maps/@-23.554...7i16384!8i8192
https://www.google.com/maps/@-23.551...7i16384!8i8192
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To me, Chicago River and the neighbouring skyscrapers are the best urban canyon in the world. And like Grand Canyon, it even gets a river.