UNESCO's World Heritage Sites: Protecting the world's treasures

For nearly 50 years the United Nations Educational, Scientific and Cultural Organization has listed outstanding natural and man-made sites as culturally significant locations worthy of protection. But what does designation as a World Heritage Site actually mean for a glacier or coral reef, or a landmark like the Taj Mahal? Correspondent Conor Knighton treks for answers. “CBS Sunday Morning“ features stories on the arts, music, nature, entertainment, sports, history, science and Americana, and highlights unique human accomplishments and achievements. Check local listings for CBS Sunday Morning broadcast times. Subscribe to the “CBS Sunday Morning“ YouTube channel: Get more of “CBS Sunday Morning“: Follow “CBS Sunday Morning“ on Instagram: Like “CBS Sunday Morning“ on Facebook: Follow “CBS Sunday Morning“ on Twitter: Subscribe to our newsletter: Download the CBS News app: Try Paramount free: For video licensing inquiries, contact: licensing@