The hashtag #1MillionParis was trending in Paris on Monday in celebration of the fact the city's Twitter account had picked up one million followers.
The City Hall sent out its first ever tweet back in September 2009 to celebrate the "Nuit Blanche", an all-night cultural event. Remarkably, the tweet was actually sent out in English for some reason.
And naturally the city's mayor Anne Hidalgo, who is very active in social media was only to keen join in the celebrations.
To mark the momentous occasion, city authorities made a time lapse video of the City of Light that showed the city in all it's glory.
It might not be the first time lapse video featuring the city, but it's certainly one of the best.
Un timelapse de Paris pour vous dire merci ! #1MillionParis
Paris est tellement beau vu d'en haut ❤ Pour fêter notre million d'abonnés sur Twitter, nous vous offrons cet incroyable timelapse de Paris depuis la Tour Saint-Jacques. La suite est à découvrir sur http://1million.paris/ #1MillionParisPosted by PARIS on Monday, 22 February 2016