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Why is building a copy necessary?

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An exact copy of Tutankhamun's famous tomb has been built in Egypt, to protect the original.

The ancient tomb was discovered in almost perfect condition back in 1922.

Now the number of people visiting is causing its delicate walls to fall apart, so an exact copy has been built using laser scanners and 3D printers.

It's hoped tourists will go and see the copied tomb, instead of the original.

BBC reporter Rajan Datar told Newsround visitors will probably have "no choice" but to see the copy in the future.