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Countries of the World

Countries of the World
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Pack your bags and grab your passport, it’s time for the Countries of the World quiz! Show us you’re the ultimate globetrotter by answering each of our questions, whether it’s about the home country of Machu Picchu, the path of the Mississippi River, or many more topics. Book some vacation time because this quiz will take you all around the world!

Fact Lab
Interesting Fact
Even the Earth could become a black hole if you compressed it to the size of a peanut. Now try to imagine a supermassive black hole with the incredible mass of 40 billion solar masses! That's what lurks within Holmberg 15A inside the Abell 85 galaxy cluster.
Interesting Fact
Rod Steward performed the largest ever free rock concert at Copacabana beach in Rio de Janeiro, Brazil. An astonishing 4.2 million people were in attendance! The concert took place in 1994, on New Year’s Eve. It must have been quite a celebration!
Interesting Fact
The smallest sample that can be clearly observed under a light microscope is a 500 nanometer long object. It is possible to observe smaller objects than this, but their features might be distorted. Anything smaller than 500 nanometers loses detail because of the wave nature of light.