Casa Isolani is a great example of a 13th-century house in Bologna. The structure is impressive, as the oak beams of the arcade reach 29 feet (9 meters) in height to support the third floor of the building. What makes this stunning medieval structure even more intriguing are the three arrows stuck in the bottom of the third floor. They are not easy to find, as they are thin and camouflaged. It’s common to see people with their heads up, looking for the unique artifacts. There are three legends that surround…