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."

Hank the Dog Becomes Baseball Superstar One of the most shared stories on the World News Facebook page this week was of Hank the Dog. The adorable stray mutt wandered onto the Milwaukee Brewers' spring training field in Arizona and became their mascot. He even runs in the wiener races at the Brewer's stadium.

The Art of Diplomacy by George W. Bush Paintings by former President George W. Bush are on display as a part of the "The Art of Leadership: A President's Personal Diplomacy" exhibit at the George W. Bush Presidential Center, running April 5 through June 3, 2014.

Oops! Senator Goes to Wrong Hearing Sen. Dan Coats, R-Ind., sat down at what he thought was an appropriations hearing on the defense budget and started reading a letter from the Indiana congressional delegation to leaders at the Pentagon. Then the embarrassing moment came. "I just got a note saying I'm at the wrong hearing," Coats said. "I've got the right room number but the wrong hearing." Coats was actually at a different appropriations hearing on Wednesday - one for the Treasury Department's Office of Terrorism and Financial Intelligence's upcoming budget. "Well that would explain why I didn't know about this letter," David Cohen, undersecretary of treasury for terrorism and financial intelligence, who was one of the witnesses, said to laughter. Coats said the incident, which was first spotted by the Washington Post, was the first time he attended the wrong hearing.