Humans of New York's Brandon Stanton just wrapped up an epic photography tour of Pakistan.
He shared some amazing stories, as well as all some incredibly beautiful pictures.
But his trip has also made a difference in the lives of over an estimated one million Pakistanis who are trapped in a form of modern day slavery, paying off insurmountable loan debts by toiling in brick kilns in rural areas.
"Over 20,000 brick kilns operate in Pakistan, supported by millions of workers, and the system is largely underpinned by an extremely close cousin of slavery—bonded labor," Stanton wrote on Instagram.
"If the laborer dies, the debt is passed on to his or her children. The practice is illegal. But due to the extreme power and wealth of brick kiln owners, the law is often unenforced in rural areas," he said.