👉 A cathedral, also known as a "church tower" or "mosque", is one of the most famous architectural structures in the world. It's the tallest building in the world at 324 meters (1061 feet) tall and is located in the heart of Rome, Italy. The term "duomo" comes from the Latin word for "church tower," which refers to its distinctive shape, with a pointed roof and bell towers on each side. It's often associated