Every street tells a story. Look down. What do you see? When we travel, my husband Larry often scolds me for stopping in the middle of the street to take photos. He’s right, of course, it’s a dangerous habit, but if something tickles my fancy, I can’t help it. (I have a very ticklish fancy!) Bricks for Ballast Those blue-tinged bricks you see at the top of this post, caught my eye in San Juan, Puerto Rico. According to our tour guide, they were used as ballast in Portuguese sailing ships. The sailors either traded or sold the stones to…