
Herein lies an acrophobic's worst nightmare, 3 terrifying videos depicting people traversing insanely tall structures with no safety lines or parachute whatsoever. Some of these people do it because it's part of their job, the others do it because they love the adrenaline rush, or they're just generally boneheads, regardless of the intentions, they've created some of the most gripping clips on the internet.
Stairway to Heaven (Climbing Towers)
This video by TheOnlineEngineers.org (a website for broadcast engineers) is an educational clip showing how a day in the life of a tower climber is like - and if the video is any representation, the answer is SCARY.
A tower climber has to scale guided towers for maintanence work; the guided tower is a structure that is taller than many skyscrapers -

Bridge on the Russian Island
'Bridge on the Russian Island' is a spectacular looking hi definition video of 2 friends scaling a 350 meter high crane between the bridge connecting Golden Horn and the Russian Island. The urban explorer in question is 18 year old Raskalov; together with his friend, they've been adventuring into tunnels and climbing on highest spots all over Russia for few years.
Visit his blog, http://raskalov-vit.livejournal.com/, for stunning looking photos and more of his daring exploits.
Pullups from On Top of a Crane
The last video on our list is the scariest one of all, unlike the 2 prior videos, 'Pullups from On Top of a Crane' looks like an bad accident just waiting to happen. For all the obvious recklessness going on in this video, these youths have successfully manage to make all their audiences queasy in the stomach and sweaty in the palms.
Where's the tallest spot you've ever been to? How did you feel about being there? Share with us your experience!
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by Herman Soh