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What's the most fascinating structure or object you've been inside of?
(sh.itjust.works)
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Logo design credit goes to: tubbadu
IIRC it did collapse, though very early on in its life. Like, barely after it was built. Got hit by earthquakes. But it was repaired, obviously.
So the answer is Maintenance.
I bet some bridges in America could do with some of that.
For sure. Canada too. Actually, the whole continent could use a tune-up and some anti-corruption updates.