Complex sentence: Its appearance mars the Paris urban landscape, and construction of skyscrapers have been banned in the city two years after its completion, though some people say that when at the top of the building, it offers the finest view of the city.
Split into simpler sentences: Its appearance mars the Paris urban landscape, and construction of skyscrapers have been banned in the city two years after its completion. However, some people say that when at the top of the building, it offers the finest view of the city.