I have a fear of heights (all the other Kestrels flew off without me
)
I have no problems flying, I remember though during my first flights in a 172, PA28, Glider etc momentarily thinking what the hell am I doing up here in this big sky in something that is only marginally wider than myself, it's a long way down. Not real fear rendering me useless, just a passing thought.
I was up in a hot air balloon a few years ago, it was a wonderful experience but I was ready to shoot anyone who made a move and rocked the basket even slightly.
If you want to test your nerves, get yourself climbing a tower crane. Climb up to the cab and ontop of the jib, stand at the middle and look up at remaining part of the tower. You'll see the clouds moving and it will scare the sht out of you faster than you can return to terra firma!
I'd be tempted to try parachuting, whether I'd have the courage to actually jump or not I don't know, but sitting here, I say yes at the minute. Bungee jumping no way!
If I found myself in the Petronas Towers, I suspect I'd sooner go down the stairs, outside, across and up the stairs, rather than step foot on that walkway between them.
Don't get me started on glass lifts on the outside of buildings! Whoever came up with them should be shot.