Tower cranes are tall, fixed structures used in construction to lift heavy materials. They consist of a vertical mast, a horizontal jib, and a counterweight. The crane's height can be adjusted, allowing it to reach various levels of a building. Tower cranes are essential for constructing skyscrapers and large buildings, as they can move materials efficiently over long distances. These cranes are operated from a cab at the top, where an operator controls the lifting and moving of loads. Tower cranes are designed to be stable and can withstand strong winds, making them reliable for construction sites. Their ability to rotate 360 degrees enhances their versatility in tight spaces.