These Borders Are So Weird, They're Actually Fascinating

3. Paraguay, Brazil, and Argentina

Three-fold frontier Region: UnknownEst. GDP: $1.013 trillion in Argentina, $3.351 trillion in Brazil, and $43 billion in Paraguay* The Iguazu and Parana rivers serve as the natural borders between Argentina, Brazil, and Paraguay, which meet at the Triple Frontier. This intersection is well-known for its breathtaking natural beauty, which includes the internationally recognized Iguazu Falls, in addition to its geopolitical significance. Paraguay, Brazil, and Argentina (Shutterstock/Maloff) The region represents the convergence of many South American identities since it is a melting pot of cultures, languages, and economic systems. It has grown to be a well-liked travel destination because it provides distinctive experiences that highlight the area's natural beauties and rich cultural legacy.