KnowFlags — Explore the World Through Flags

Geography

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True Size Map

How big is China, really?

Most world maps distort country sizes. Drag any country across the globe and compare its true size — no more Mercator lies.

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Countries compared at their true size on a map

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Test your flag knowledge

Seven ways to sharpen your geography — reveal a flag tile by tile, draw one from memory, or rank countries by the numbers. No account needed to start.

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Flag Reveal

Uncover the flag tile by tile

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Flag Quiz

Multiple choice flag challenge

EasyPlay

Flag Rank

Rank countries by area, GDP and more

MediumPlay

Flag Locator

Find the country on the map

MediumPlay

Flag Draw

Can you draw it from memory?

HardPlay

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Browse the full catalogue and pick your challenge.

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Blog

Latest articles

Why Do So Many African Flags Share the Same Colours?

Green, yellow, red. Across Africa, these three colours appear again and again. Their story leads back to Ethiopia, a victory that became a symbol, and the African independence movements of the 20th century.

Aug 23, 2026·5 min read

Four Colours, One Revolt: Where the Pan-Arab Colours Come From

Black, white, green, red. Four colours that return from Jordan to Yemen, and whose story begins with an uprising in the Arabian desert.

Aug 15, 2026·4 min read

How to Describe Any Flag Like a Vexillologist

Describing a flag out loud is harder than it looks, unless you know the words for it. Flag experts use a precise vocabulary, most of it borrowed from medieval heraldry. Here is the essential toolkit, one term at a time.

Aug 3, 2026·8 min read

The Family Tree of the World's Flags

Watch the flags parade at an Olympic ceremony. Before long, a strange feeling sets in: you could swear you have seen them before.

Jul 27, 2026·4 min read

Why Flags Are the Shapes They Are ?

Almost every flag is a rectangle, but almost none share the same one. A flag's proportions are a real design choice, shaped by imitation, by law, and by the wish to stand apart. Here is how ratios work, and why they vary so much.

Jul 25, 2026·6 min read

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