Here's what the garden looked like at the end of the day, after eight hours of careful dabbing. You had to peer close to see the designers' work, but that's part of the beauty. Over the next few years, the walls will literally come alive. Photo 12 of 12 in World's First Lichen Garden? by Jaime Gillin

World's First Lichen Garden?

12 of 12

Here's what the garden looked like at the end of the day, after eight hours of careful dabbing. You had to peer close to see the designers' work, but that's part of the beauty. Over the next few years, the walls will literally come alive.