1. The Ukraine and Poland Event: Border: Land Art Festival - Crop Circle Fish Area: 529 km² (total border length) Estimated Gross Domestic Product: $1.405 trillion (Poland) / $488.93 billion (Ukraine) Along the Poland-Ukraine border, an extraordinary land art piece breaks the mold of traditional boundary markers. The striking “crop circle” fish, designed by artist… Continue reading The World's Most Unusual Borders: You Won't Believe Where These Countries End