On March 4, Mark Zuckerberg hosted an in-person public Q&A at the Liceu theater in Barcelona, Spain where he answered questions from people around the world. Around 300 people from Barcelona and the surrounding community attended the event.

You can watch a replay of the event below, and download photos and clips at the bottom of this post.

Here are a few highlights:

Q – Will Facebook to take up challenges like blood donations in the near future?

Q – If Facebook already existed, what idea would you be working on instead?

Q – Can you post more pictures of your dog, Beast?

Q – Does Facebook have any plans to work on something outside of internet technology?

Q – How do you attract and select the right people to work at Facebook?

Q – How will you improve your process of taking some things off of Facebook and leaving other things up?