Milan, Italy

While walking in the hospital's lanes I can reach a big room with enormous windows giving me a look to the outside world. Fortunately just on the other side of the road there's a small park giving me a bit of fresh air and a wellness sensation, like if I can smell the clean air out there.
On the background there's the city Skyline forming and evolving, with five of the most iconic buildings of the city.

Can you name them?