@designexpertint: Tower cranes are some of the most impressive machines on a job site 🏙️: they climb along with the building, tie themselves to its structure and even let the wind turn them so they don’t tip over 🌬️. Behind every crane on the skyline there’s a foundation, a step-by-step assembly and a lot of engineering 👷♂️. How many tower cranes can you see on your city’s skyline today? Tell us in the comments 👇 Follow Design Expert Academy for more engineering explained. #towercrane #construction #civilengineering #buildings