This program is over. Hope you didn't miss it! Browse other programs we offer Great Barrier Reef UNESCO World Heritage Sites Evening Lecture/Seminar Tuesday, May 5, 2026 - 6:45 p.m. to 8:15 p.m. ET Code: 1J0546 Location: This online program is presented on Zoom. Registration Options $25 Member $35 Gen. Admission Resize text Stretching for more than 1,400 miles across the northeastern coast of Australia, the Great Barrier Reef is home to the world’s largest coral reef system as well as an extraordinary range of marine life. Historian Justin M. Jacobs highlights the geological and biological evolution of the reef, its evolving cultural importance, and the manmade and environmental forces that now threaten its existence. Additional UNESCO World Heritage Sites Programs April 22: Mount Fuji June 10: Thingvellir National Park July 22: Herculaneum and Pompeii August 19: The Sacred Buddhist Landscape of Bagan General Information View Common FAQs and Policies about our Online Programs on Zoom.