Walking is good for the heart and the soul. This is especially true after a stroll down one of these 15 lanes. From pink flower-strewn paths in Spain to brilliant yellow roads paved with petals in Washington D.C., there's no way you can't hit the refresh button on life after a stroll down one of these 15 paths. They're jaw-droppingly beautiful and oh so calming. 1. Porto Alegre, Brazil Flickr / Stephen Messenger 2. Positano, Italy Flickr / Agnes Alsua 3. Valencia, Spain Visit The World 4. Spello, Italy Flickr / Nicoletta 5. Nafplio, Peloponnese, Greece Flickr / Wilson Lu...