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 could appear on World News.

Do You Know How Much Caffeine You're Drinking? You may be drinking more caffeine than you realize, depending on where you get your morning cup of coffee. According to data from the Center for Science in the Public Interest, Starbucks coffee has more caffeine than McDonald's. A large McDonald's coffee has 133 milligrams of caffeine while a venti coffee from Starbucks has 415 milligrams. A large Dunkin' Donuts coffee with a turbo shot has 436 milligrams, but a medium regular coffee has 178 milligrams.

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Car Flies at EAA AirVenture Fly-In A flying car made its debut this week as it set off on a test flight at the EAA AirVenture fly-in in Wisconsin. The "roadable" aircraft, known as the Transition, is still being perfected by its makers at Terrafugia, but it is the most developed flying car design out there today. No word yet on how soon the Transition will be available for sale.

UCONN Women's Basketball Players Give Obama 'Bunny Ears' President Obama welcomed the University of Connecticut women's basketball team to the White House on Wednesday, congratulating it on its eighth NCAA national championship. The ceremony took on a playful nature when a couple of the Huskies gave the unsuspecting commander-in-chief "bunny ears" as he posed for a photo with the team.

National Geographic Announces Travel Photo Contest Winners Check out this year's winning photos from National Geographic's Traveler Photo Contest. Photographers submitted their images of spectacular scenes of nature, people, and culture from nearly every corner of the world. The first place photo, a stunning action shot from the Brazilian Aquathlon in Manaus, Amazonas, comes from Wagner Araujo.

Queen's Cole War Speech Revealed Official documents detailing what the queen of England would have said to her people if the Cold War had turned into a full-blown nuclear confrontation were released today. The speech, written in the spring of 1983, imagines the Soviet Union launching a chemical attack on the U.K., and NATO striking back with nuclear force. The queen, who would have been following in the footsteps of her father, King George VI (the King during World War II), would have told the people of England: "The enemy is not the soldier with his rifle nor even the airman prowling the skies above our cities and towns but the deadly power of abused technology. But whatever terrors lie in wait for us all the qualities that have helped to keep our freedom intact twice already during this sad century will once more be our strength."