Arches are very difficult to be build, but the construction workers have found smart ways to make it simple and easier. They are using big old tires that would be enough as the size of the arch they need in their construction project. These images are presenting the smart way of finding the easiest solution for the complicated construction as the arches are.  Compress earth block in building and right size of tire would do wonders in the construction. Here is the proof!

...