The roof tiles in Denmark are really pretty. With the exception of a few big structures that have slate, everything is ceramic tile, the kind my dad said people used to make by slapping the slab of clay on their thighs to get that rounded shape. A lot are orange unglazed terra-cotta and some shiny black. The neatest ones, to me, are the aged terra-cotta that's taken on a patina of lichen and moss and is now a mottled gray-black. Oh, there is also the occasional thatch roof. I'm not sure how old they are, but I love the novelty of it. Probably a beast to maintain and they look like their prone to massive moss colonies, but they're so fairy tale like and different than what I've seen in New England or even China and Japan.