5. China, and Mongolia
Border: City of Erenhot/Dinosaurs
Area: 4,677 km²
Estimated Gross Domestic Product: $17.52 trillion (China) / $43 billion (Mongolia)
Erenhot, a border city in China, and its Mongolian neighbor are connected not just by geography, but by a shared prehistoric legacy—celebrated with giant dinosaur monuments. Erenhot is famous for its rich fossil fields, making it a key site for paleontology.
At the city’s entrance stands an archway with embracing dinosaurs, symbolizing this ancient bond. This impressive landmark welcomes visitors and locals, reminding them of a history that predates modern borders.

Beyond celebrating a shared natural past, the unique dinosaur memorial in Erenhot also marks the real border between China and Mongolia. These towering Jurassic sculptures greet travelers, turning the border crossing into a trip through time.
As people approach, they are met by these massive creatures, sparking wonder and nostalgia for a distant era. This blend of history and geography highlights the deep connections that reach beyond today’s political lines.