I'm currently travelling Buenos Aries can you recommend any nightlife hotspots for a Wednesday or Thursday night?
Wednesdays and Thrusdays are special for after office outtings. There are many places to go in different neighborghoods.
In Palermo you can go to Peugeot Lounge, Isabel, 878, Victoria Brown, etc.
Check the online magazine Planeta Joy for more information
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Here you have a website detailing to do in the evenings depending on what you like you do.
I regret that the site is not in English.