Incredibly Hard Work

So, how would you like to spend your day breaking apart this entire street and sidewalk using a cold chisel and sledge hammer? These men have been working on it for weeks (one block is done and now they are beginning the next one). They do this all day, They are also chipping a trench a few feet deep along each side. They shovel all the rock except what they use to mark the lane into wheelbarrows and haul it away somewhere. 
I don't know what the project is, but I'm sure it will be a work of art!