This marble quarry is 130 meters deep — that's roughly the height of a 40-story building. Workers have been moving deeper into the pit for years. They've now hit the ground table and are constantly sucking out water from the site. Turkey holds an estimated one-third of the world's marble reserves, but its marble isn't as highly valued as Italy's. In the latest episode of "Big Business," we explore why. Learn more about the marble industry at the link in our bio. #marble #Turkey #Italy #architecture #bigbusiness