Window cleaning the world’s tallest building – Supersized Earth – Episode 1 – BBC One

The world's tallest building, the Burj Khalifa in Dubai, has the world's highest windows. Dallas joins the team whose heart-stopping job it is to clean them.

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The world’s tallest building, the Burj Khalifa in Dubai, has the world’s highest windows. Dallas joins the team whose heart-stopping job it is to clean them.

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