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? Comment below with the stories you're talking about or tweet them to us using #InstantIndex and they could appear on World News.

Here's Jimmy? According to reports, Jimmy Fallon will likely replace Jay Leno as the next host of the "Tonight Show." Fallon joked about the rumors during Tuesday night's show. "I have to talk about the rumors that came out today, which say that I'll be moving up to 11:30 - or as my parents call it, 'Eh, it's still too late,'" he said.

Image credit: Kevin Winter/Getty Images

Web Milestones Twitter celebrated its seventh birthday today and YouTube announced that it now has 1 billion unique views every month.