1. Austria and Slovenia Border: Kepa Mountain Area: 330 km* Est. Gross Domestic Product: $68.108 billion (Slovenia) / $613 billion (Austria)* Situated on the border between Slovenia and Austria, Kepa Mountain provides a unique experience for those who like to stroll on top of a natural boundary. With its majestic climb, this Alpine peak—also called Mittagskogel in Austria—allows… Continue reading These Strange Borders Will Make You Question Everything You Thought You Knew About Geography