[altharaz]

I would have said “the day Pokémon Go had been released”.

I remember people from different generations walking in the streets, talking and laughing together without knowing each other. Something very rare for Paris :).

[WhompingWindows]

Is that really a day "on the Internet" though? That was beautiful precisely because everyone got outside, saw monuments and interesting sites, learned about their surroundings.

[BurningFrog]

It was also entirely internet enabled. Worlds meeting, I suppose.

[potta_coffee]

It was less fun in my town: pedestrians wandering obliviously into traffic, etc. Still entertaining though.