Where in the world ... ?

(CNN) -- [Updated 3 p.m. ET, Monday, October 24] The photo above was taken Thursday in Athens, Greece, where protesters clashed over the country's tough budget cuts.

The unpopular austerity measures are designed to bring down Greece's national debt. But they are also expected to cause about 30,000 job losses while cutting wages and pensions for workers in the public sector.

"We have no hope. The only hope we have is the strength of the people," said protester Vagelis Filezis, a civil engineer, before the vote. He said Europe's leaders were trying "to save the banks but they don't think about the people."

In our CNN.com photo challenge, readers "bokshi," "setht37" and "thepoot" were the first to answer correctly this week.

[Original post] Do you know where this photo was taken?

If you think you know the answer -- or if you just want to take a wild guess -- post it in the comments area below. Later in the day, we'll reveal where the photo was taken and give credit to those who figured it out first. (The more detail, the better!)

Each Monday morning, we'll post a new photo and challenge you to tell us its origin. The photo might be related to a prominent news story or theme -- or it might just be something that caught our eye.

Good luck!

Check out past "Where in the World ...?"