There's a chance that Europe could unify as a giant superpower by 2100, so what could that look like? Here is my attempt at a flagmap for a Federalized Europe. I'd imagine Germany as the central hub for the federalized Europe. As it's own superpower, it no longer needs the US as it's bodyguard, and has a powerful economy. Let's say they also built a Neopannonian sea too lol. To solve the housing crisis, it could have high-rise apartment buildings in what are like Soviet microdistricts. Oh and let's say they also fix the birth rate too. Due to it's size, it's ethnically diverse, and has several architectural and geographical wonders. In the north, you can find snowy mountains and auroras while in the south, you can go on holiday to a resort at a beach. It's subdivisions are multiple different republics for every European country that joined the Federation. Official languages are English and German (spoken by pretty much everyone). In other republics, local languages are spoken, meaning everyone here is either bilingual or trilingual. The European Federation originally started as a union between Germany, the Benelux, and France. Over the course of a few years, it unified all of Europe as one superpower.