Imagine a vast fantasy world map drawn on parchment. The centerpiece of this map is a large continent, its central area featuring a broad river that flows through an extensive plain. This river and plain combination suggests a natural site for a significant yet unmarked city. Surrounding this central plain, the continent is a patchwork of diverse landscapes, including dense forests, towering mountain ranges, and wide-open spaces, all designed without any text or markers, inviting viewers to immerse themselves in an unspoken narrative of exploration and discovery.