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Slideshow · Travel

13 Unusual International Country Borders With Surprising Histories

International borders usually follow rivers, mountains, or straight lines. Yet, historical treaties, colonial quirks, and shifting landscapes have created 13 extraordinary frontiers where everyday life crosses between nations unexpectedly.

14 Oct 2026

6 Min Read14 Slides
  1. 50/50 split cover showing the pavement border crosses of Baarle-Nassau and Baarle-Hertog alongside the river confluence at the Triple Frontier.
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International borders usually follow rivers, mountain ranges, or straight survey lines. Yet around the globe, historical treaties, colonial quirks, and shifting landscapes have created 13 extraordinary frontiers where everyday life crosses between nations in the most unexpected ways.

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©Wikimedia / Jerome & Marcio Ramalho

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