It may not feel like that in some places around the Northern Hemisphere, but spring is upon us. While the official date is March 21, it often takes awhile see the signs of winter's last days finally disappearing. Here in Chicago, on a walk I took recently, one yard had hundreds of purple crocuses peeking out of the ground! Hang in there Northerners! Summer's coming. And in the meantime, enjoy a few images of the best of spring.