You can climb Ayres Rock, the native aboriginies would just prefer it if you didn't.
It would be pretty awesome to throw it off the Empire State Building, considering a penny could kill someone if it made it to the ground. However, due to their small size the wind blows them back to a balcony type thing, and they never make it down. A diabolo, however, (once you get past the security, the gates, the safety fences) would be able to be tossed far out, and with the wind, so it could be carried out for quite a distance.
It could if you recently had brain surgery performed, with your skull literally hanging by a few threads, and you just so happened to be in the wrong place at the wrong time. Or, if the penny cracks a brick off a nearby already crumbling roof which just so happens to knock you out, you fall down in the middle of a busy intersection in New York, and... well, you know. X^pDon't forget the tourist looking up at the top of the tower with their mouth agape, the penny gets lodged in their throat, they slip off the sidewalk and land on a taxi cabs windshield.There's thousands of variables Adam and Jamie left out in their "controlled experiment".
Anyway, the only dream place I would want is being outside with no wind.
Wind is a jugglers true and only foe!
and for diaboloers, tony freebourgh
I bet if you shot a bullet off the top of the empire state building it could kill someone.
for jugglers i'd say chuck norris.