In this six-part, one-hour series, we highlight several of the most famous and historically significant buildings, bridges, and structures in the globe. what materials were used, and why? Join us as we explore Stonehenge, Machu Picchu, Angkor Wat, The Great Wall of China, Petra, the Eiffel Tower, the Sydney Harbour Bridge, the Statue of Liberty, and more as we honor human endeavor throughout history.