I've been in Buenos Aires for the past few days, with my dad. A few photos:

Mechanical flower statue. The flower sometimes opens. It's unclear what criteria causes it to open: solar power?
I felt a strong desire to sit in the park with my laptop, watching for the flower to open. It is like the Deer Hunter game where the user sits for many minutes waiting for a deer to appear. Top-selling PC game in 1999!

There are a lot of beef dishes in Argentina. This was a particularly good one.

Bought an empanada on the street during the Sunday fair. I chose pumpkin, corn, and cheese stuffing. Turns out it doesn't taste very good to have a starchy dough stuffed with numerous other starches.

My dad and I went to watch a soccer game. This is a photo from an hour prior to the match. 90% of the seats were filled during the actual match.
There were at least 100 policemen outside. We saw several streets where a dozen policemen stood in a line next to one another, each holding a heavy glass shield. There were policemen on horses, policemen in cars, policemen in armored vehicles. All this for a regular Sunday soccer match between two local leagues!
"Why do they have horses?" I said.
"To chase you if you cause trouble," said my dad.
"But why horses, when they already have cars and armored vehicles?"
"To chase you using every available method."
We passed mobs of fans wearing the local team's colors: yellow and dark blue. Fortunately I happened to be wearing a dark blue Google shirt. My dad lamented that China will never get into the World Cup again. "Look at these fans," he said. "China has to get this serious to stand a chance! It's not going to happen."
During the game, everyone around us stood for the entire match, singing songs in unison for three hours.