11:00 - Explore the historical Atomium: Next, head to the Atomium, a landmark building in Brussels originally constructed for the 1958 Brussels World Expo. This unique structure, shaped like a unit cell of an iron crystal magnified 165 billion times, offers panoramic views of the city from its top sphere. Inside, you'll find exhibitions about its history and architecture. Did you know? The Atomium was not intended to survive beyond the Expo, but its popularity and success secured its place as a major landmark on the Brussels skyline.