Art detective in your photo app

I was in Segovia, Spain recently and used my iPhone to take a photo of a painting at the cathedral that interested me. There was no signage next to the painting. Later, when browsing through my shots, I noticed an unfamiliar option when I tapped the "info" button — "Look Up Artwork." One tap and I had the painting's name, artist, date, current location, and link to Wikipedia. This feature works retroactively on all art photos in my library. — MF