Complex sentence: Overall, not including those still under construction, Toronto is currently the site of 23 buildings over 500 ft tall and 25 over 150m tall, with a total of 1,747 high-rise buildings city wide.
Split into simpler sentences: Overall, not including those still under construction, Toronto is currently the site of 23 buildings over 500 ft tall and 25 over 150m tall. With a total of 1,747 high-rise buildings city wide.