If you've got acrophobia, or fear of heights, like a lot of us do, chances are just looking at this photo is making you feel a little bit sick. Imagine how he must feel! This daredevil is one of those people they call "urban explorers" - the kids who go around climbing through abandoned subway stations, building sites, and spooky old asylums.
Usually they're doing it without a care in the world, like this guy. Unfortunately, he was one of the ones who took their adventurous spirit a little too far. He and his friends had climbed up to the stop of an unfinished skyscraper in Dubai, and he snapped this selfie just at the top. Only seconds later, he lost his grip on the scaffolding... and plunged to his death after falling over 100 stories.