Last year I went bungee jumping for my birthday, and it was one of the most unique experiences of my life.
I've been skydiving before, but I don't think my caveman hind brain was able to comprehend the danger. Jumping off a bridge however was at a recognizable height, so the moment I leapt, that part of my brain screamed "OH GOD WE'RE DEAD!"
I chalked it up to first time nerves, but with the second jump, same mental scream. Never felt anything like it in my life, and will probably never do it again, but I'm sure glad I tried it.