Posted at 12:25 PM ET, 01/30/2012

Photo of the day: What in the world?

Do you think you’re tough? Tough enough to run through fire?

This event claims to be the world’s most demanding one-day survival competition, with as many as one-third of the participants failing to finish. Where in the world is it?

Competitors cross a fiery obstacle. (Jon Super - Associated Press)

Let us know your guesses in the comments below or tweet them using the hashtag #whatintheworld.

More world news coverage:

European leaders focus on treaty to reduce debt

Pakistani court allows former envoy to leave

New museums in Libya reflects war experience

Read more headlines from around the world

By Greg Linch  |  12:25 PM ET, 01/30/2012

Tags:  World, photo of the day, what in the world

Read what others are saying

    © 2011 The Washington Post Company