One of the coolest buildings in the world, in my personal opinion, is the Atomium in Brussels. Originally constructed in 1958 for the Brussels World Expo, it was designed to represent nine atoms of Iron aligned into an iron crystal, magnified 165 billion times. Plus, six of the nine spheres are open to the public, housing everything from art exhibits to a film theater to a restaurant.
But the absolute coolest thing about the Atomium is that the whole structure is so perfectly balanced. Every node is different, and all of that had to be taken into account by the architects.
Much like a molecule, the Church was designed to be a massive, complex body. And unlike a molecule of iron, we’re not all the same kind of cell.