The World and Its Countries
Like Duolingo, but for The World and Its Countries. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
20 levels across 3 sections, about 40 minutes end to end, roughly 8 days at five minutes a day. It moves through Finding Your Place, Shapes and Borders, and The Human Map. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in The World and Its Countries
- A country requires a defined territory with specific land borders
- A country must have a permanent population rather than just seasonal visitors
- The fundamental physical requirements for a country to exist
- Sovereignty gives a government supreme authority over its internal affairs
- No outside power has the legal right to dictate laws within a sovereign state's borders
- The practical meaning of sovereignty within a territory
- Official status depends on being recognized by other established nations
- Symbols act as 'social glue' for people who will never meet each other
- Recognition allows a country to join international organizations and sign treaties
- National symbols distinguish one country's identity from its neighbors
- Borders mark the limit of one government's legal jurisdiction
- The role of international recognition in statehood
- Borders can exist without physical barriers like fences or walls
- How national symbols function to build identity
- The function of borders as legal transitions
- Europe and Asia share a land border along the Ural Mountains
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The World and Its Countries the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Who must live in a place for it to be considered a real country?
Get it right to open this lesson and 19 more in the app.
Where The World and Its Countries takes you
Discover how the world is divided, why borders exist where they do, and how to make sense of the global map without getting lost in the details.
- 1
Finding Your Place
- What Makes a Country?
- The Big Picture: Continents and Oceans
- 2
Shapes and Borders
- Natural vs. Man-Made Borders
- Size, Scale, and Microstates
- Island Nations and Archipelagos
- 3
The Human Map
- Capitals and Power Centers
- Reading the Map Correctly
3 sections · 7 units · 20 levels. Built to play, not to enroll.
You pick the voice
The World and Its Countries is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The World and Its Countries today.
Download Tomo, search The World and Its Countries, and play your first lesson in under a minute.