Last Saturday (8th August), Zurich was invaded by a loud music, alcohol and people from all over the world. They came to Zurich to party all day long, even under the rain. I happened to stay in the hotel which situated right in the heart of the party zone, gosh...the BUM BUM BUM noise stayed up to 5 AM the next morning.
It's quite fun to see people in their funny customs posing for the photographers, even though there were also some older people who tried to be a bit on the "extreme" side with their a bit "too fulgar" customs.
It's quite an experience, but it could be even better if it wasn't accompanied by the rain.