If you happen to be near Avenue Louise, you should definitely gaze upon the city from this viewpoint and also take the glass elevator down to Rue Haute.
You can enjoy this beautifully isolated panorama over Brussels by taking Tram 51, which can be combined with an interesting visit to the Church of Saint Augustin, famous for its art deco architecture and rooftop view, also located here.
Mont des Arts
In the heart of the city, you simply cannot miss it. All you have to do is climb up the stairs to Mont des Arts and you will be offered an enchanting view of Grand Place.
On the top of one of the highest buildings in the heart of Brussels, a massive parking lot near DeBrouckere, you will come across one of the most amazing views of the Brussels skyline.
Parc du Cinquantenaire
Right on the top of the centerpiece triumphal arch, easily accessed through the Royal Museum of the Armed Forces and Military History, you can enjoy a rewarding view of the European Quarter.
There is a secret hideaway at the end of this neighborhood park, located in Schaerbeek overlooking the city. The Brussels skyline, as seen from this viewpoint, offers an architecturally-interesting urban mix. When the weather permits, it can surprise you with a beautiful panorama.