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.

Tonight's Instant Index:

100 Grand Central Terminal is turning 100. The iconic landmark opened for business at 12:01 a.m. Feb. 2, 1913. Before/After Slider Photos: http://abcn.ws/WHnGb4

MTA/Metro-North Railroad

Hail to the Ravens! The Baltimore Symphony Orchestra composed this tribute to its beloved hometown team. Of course, we'll have to wait until Sunday to see whether it was the musical motivation the team needed to become champions.

By the Numbers The Super Bowl is the second-biggest eating day behind Thanksgiving and this year Americans will consume a staggering amount of food: - 29 million pounds of chips - 8 million pounds of guacamole - 50 million cases of beer - 1.23 billion chicken wings