Grammichele, in the heart of the province of Catania, is well known for its mesmerizing geometric grid from above. The surprise is heightened when you discover it's not a contemporary whim, but the result of a 17th-century reconstruction guided by a rigorous urban planning vision. With just over twelve thousand inhabitants, the town center boasts baroque squares, scenic churches, and a museum that recounts the origins of this urban enterprise. Here, then, are what to see in Grammichele, the hexagonal city.