| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S2019E01 | Curious Capital Cities |
January 31, 2019
|
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| S2019E02 | Do We Really Need Time Zones? |
March 17, 2019
|
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| S2019E03 | BC/AD or BCE/CE? |
March 31, 2019
|
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| S2019E04 | Why Countries Change Their Names (Endonyms vs Exonyms) |
May 16, 2019
|
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| S2019E05 | How Fungi Made All Life on Land Possible |
June 2, 2019
|
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| S2019E06 | Winners & Losers: Episode 4 - UNESCO World Heritage Sites |
August 2, 2019
|
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| S2019E07 | The World's Oldest International Borders |
September 30, 2019
|
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| S2019E08 | Fascinating Flag Facts |
November 30, 2019
|
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| S2019E09 | WonderWhy Flag Tier List (Bonus Video) |
December 4, 2019
|
1 | |
| S2019E10 |
Calendars Around the World
season finale
|
December 31, 2019
|
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No artwork of this type.
No artwork of this type.