In 39 pictures, I can't imagine how the word "safety" could ever come to mind.

#10 That's the Pontcysyllte Aqueduct. Deaths there are infrequent and usually suicides. The most recent was a young man who decided to climb through the railings and fell - misadventure.

#18 It is NOT ACCIDENTAL. After the whole issue of frying buildings, EVERY architect knows not to make a parabola, so doing it is ALWAYS on purpose, but they lie.