How was the Burj Khalifa in Dubai built?

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Learn all about the theremin, a very peculiar musical instrument

In the world there are many musical instruments, each of them has its type, its way of playing and of course a difficulty.

The world's most valuable currencies: do you know what they are?

We all know the currencies of the world, these are the bills, coins and digital money that are used every day. If you were asked about...

The 7 most unusual Christmas traditions in the world

From burning the devil to throwing shoes, everyone celebrates according to their beliefs