From the unconventional and awe-inspiring to the hilarious and heartwarming, here's a look at some of the most interesting photos, videos and stories that have our newsroom talking today. What's capturing your attention, filling your inbox and cluttering your Facebook/Twitter feed? Tweet us the stories you're talking about using #InstantIndex, or email us at ABC.WorldNews@abc.com, and they c OK ould appear on "World News."

B ill Gates Back on T op of Billionaires List Bill Gates is back on top of the annual Forbes Billionaires List, unseating Mexico's Carlos Slim who had held the top spot the last four years. This year, the US had the most billionaires with 492 including Warren Buffet in fourth place, Google's co-founders in 17 and 19 and Facebook's Mark Zuckerberg at 21. The nation with the second-highest number of billionaires was China with 152. More women made the list this year - 10 percent. Two-thirds of the world's billionaires can say their fortunes are self-made.

(Credit: Mehdi Taamallah/AFP/Getty Images)

Corvettes Pulled From Sinkhole The first of the vintage Corvettes that were swallowed by a 40-foot sinkhole beneath the National Corvette Museum in Kentucky last month was pulled out today. It was a 2009 Blue Devil ZR-1. A 1993 ruby-red Corvette was also pulled back on solid ground. Two down, six more to go.