Three words: Don't. Look. Down!
Yes, this was the amazing shot taken by photographer Joe McNally when he reached the top of the Burj Khalifa in Dubai - aka the world's tallest building.
Posting the photo to Instagram and Twitter, McNally wrote: "My old battered shoes climbed the worlds tallest building today. What an amazing structure! Tweeting from 820 meters straight up!"
An amazing structure - and an amazing
feet feat. To enjoy more of McNally's work, check out his YouTube channel and follow him on Twitter at @joemcnallyphoto.