Two people were stabbed after the "spontaneous" event descended into violence.
The Met said five officers and at least three members of the public were injured following a "spontaneous water fight" on the hottest day of the year.
RIP 65,000 people.
The 18m tall condom is raising awareness of HIV.
Police have launched an investigation into the graffiti.
Director and producer Simon Smith has spliced together a 1927 film by cinematographer Claude Friese-Greene with his own footage. The charming result shows how little the city has changed.