merca.earth is an on-chain map of Earth where anyone can own any place. Draw any polygon anywhere. Register it. Then make it yours: name it, upload an image. Your parcel becomes a visible place on the map that anyone can see. The catch: every parcel is always for sale. Anyone can buy yours at the current price. Prices escalate with every trade. Six hierarchy levels. Own a region, earn a share from every sale inside it. The map fills up with what people think is worth claiming.