Construction cranes are tall, tower-like machines used to lift and move heavy materials at construction sites. They are essential for building structures like skyscrapers, bridges, and homes. Cranes can reach great heights and are equipped with a long arm, called a boom, that can extend and rotate to place materials precisely where needed. There are different types of cranes, including tower cranes, mobile cranes, and crawler cranes, each designed for specific tasks. Tower cranes are commonly seen in urban areas due to their ability to reach high elevations, while mobile cranes can move easily between locations. These machines play a crucial role in modern construction projects.