#6 Deafening pyro
The pyrotechnic displays at WrestleMania are always pretty special to see on television, but in person, they're on a whole other level. The sheer grandeur of the event is encapsulated into these firework displays of sorts, and it really does make you feel as if you're a part of some kind of carnival.
Unfortunately, if you're not anticipating them then the odds are that you'll be left with a distinct ringing noise in your ears. That's nobody's fault in particular, but the deafening nature of the pyro will initially lead you to believe that there's been a nuclear detonation just a few blocks away. That's not a criticism, necessarily - just a word of warning.
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We'll stay on the stadium for this next point.