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."

McCartney on the Mend Paul McCartney is expected to fully recover after being hospitalized in Tokyo, Japan, for a viral infection. McCartney, who had to cancel his tour, told fans he was moved by their well wishes. He turns 72 in June.

Ferris Wheel Open for Business Just in time for the Memorial Day weekend, the National Harbor Observation Wheel in Maryland is open for business. At 180 feet tall, the wheel was built over the Potomac River. In the distance, riders can see the Washington Monument.

Meteor Shower Calling all stargazers! Get out your cameras and man your telescopes. Tonight, the Earth will hurtle through a field of space debris. Experts predict a once-in-a-lifetime meteor shower - that means 1,000 shooting stars per hour. Enjoy!