List of parks and gardens in Brussels
Brussels is one of the greenest capitals in Europe, with over 8,000 hectares of green spaces. Vegetation cover and natural areas are higher in the outskirts, where they have limited the peri-urbanisation of the capital, but they decrease sharply towards the centre of Brussels; 10% in the central Pentagon, 30% of the municipalities in the first ring, and 71% of the municipalities in the second ring are occupied by green spaces.
Source: Wikipedia — List of parks and gardens in Brussels (CC BY-SA 4.0)