Alireza is standing way up high on a rooftop, about to do an extremely dangerous backflip onto another roof. If he misses and falls into the gap between the buildings, it would surely be fatal. It's nerve-wracking just watching him attempt the stunt!
Next, Dominic gets a running start and jumps off a high ledge. Not only is the jump dangerous, but he's also able to do a front flip before landing. That takes a lot of guts.