Isn't it interesting, when you are travelling in a new city, your eyes immediately look for a metro map? Some city metro maps are complicated, connecting hundreds of stations and lines. Some are pretty minimal with only a few stops.. But they all have the same design language. It's universal. This collection is inspired from our travels to new cities and the metro maps encountered during our explorations. We wanted to create evolving metro maps that slowly grow with time, just like how a small cities get bigger and bigger with new metro lines. And this is how 'the metro' is born. It's on-chain, interactive, evolving in unpredictable way completely on/in-chain. This is the first collection from the 'drop' series from int.art.