Geography, not politics

ChikBord Atlas World border explorer

Explore trijunctions, enclaves, exclaves, and the strangest frontiers on Earth — from Vaals to Wagah. No visas, no customs, just wonder.

Open the map Contact support
57+ frontier sites
8 categories
6 continents
10 challenges

Six tabs, one atlas

Every screen in ChikBord Atlas is built for curious travelers, geography students, and anyone who loves impossible maps.

Border Map

Interactive world map with color-coded pins. Filter by category, tap any marker, and read the story behind every dashed line.

Atlas Hub

Browse eight frontier categories — tripoints, enclaves, exclaves, oddities, crossings, parks, houses, and forts.

Border Oddities

Records and curiosities — the world's longest border, shortest 150-meter frontier, Bir Tawil, and Pheasant Island.

Crossings

Iconic gates, bridges, and ceremonies — Wagah, Øresund, Kazungula, Checkpoint Charlie, and the Korean DMZ.

Challenges

Earn badges — stand at ten borders, hunt five tripoints, walk an international bridge, or complete the Cold War trail.

Border Passport

Stamp visited sites, save favorites, and track your frontier stats across categories and continents.

Eight kinds of frontier

Each category uses its own color on the map — the same system you see inside the app.

  • △ Trijunctions
  • □ Enclaves
  • ↗ Exclaves
  • ✦ Oddities
  • ⇄ Crossings
  • 🌿 Border Parks
  • ⌂ Houses on Borders
  • ⛨ Border Forts

Stories behind the lines

Every site includes a tagline, summary, full story, quick facts, coordinates, and related frontiers. Share discoveries or mark places visited in your Border Passport.

  • Baarle-Nassau — 22 Belgian pockets inside the Netherlands
  • Triple Frontier — three nations at Iguazu Falls
  • Hôtel Arbez — dine in France, sleep in Switzerland
  • Schengen Tripoint — birthplace of passport-free Europe

Longest border

8,891 km

Canada–United States

Shortest border

~150 m

Botswana–Zambia

Smallest state

0.49 km²

Vatican City enclave

Built for explorers

ChikBord Atlas is an English-language reference app for iPhone and iPad. Favorites, visited stamps, and challenge progress stay on your device — no accounts, no subscriptions, no tracking.