Failing to greet each person in a group with a kiss is considered rude in Buenos Aires.
About 13.1m people live in Buenos Aires. It's the number 17 most populous city in the world.
The geographical area of Buenos Aires is 2266 sq km, ranked number 21 largest in the world.
It usually rains 102 days per year in Buenos Aires.
The average daytime temperature in Buenos Aires is 24.5°C in January and 12°C in July.