Take a tour of the top 5 attractions of Brussels, Belgium. I'd like to give you a tour of the top 5 attractions of Brussels. Atomium - amongst the world's most fascinating buildings. Represents a cell of an iron crystal magnified 165 billion times. You can even take a walk inside. Manneken Pis - simply put a statue of a boy urinating. Though unexpected, a famous brussels landmark. Often, it is adorned with costumes. Royal Greenhouses - Built all the way back in 1873, its a massive complex of greenhouse domes, galleries and showcases many rare plants and flowers. Royal Palace - currently the offices of Belgian monarchy, this present structure was constructed in 19th century Grand Place - spend an evening in europe's most beautiful square. Few other places in the world can match this architectural splendor.