Follow an archaeologist and sculptors to learn how the people of Petra built their city of stone.
Discover odd and unlikely creatures that at first glance seem ill-equipped for survival.
Three guests who have found fame mining their family stories for comedy learn about ancestors who overcame immense suffering.
Learn why an Allied plan in WWI involving 600 tons of explosives in secret tunnels under German trenches failed to break the lethal deadlock of trench warfare.
Discover the lives, great migrations, and fascinating encounters of two bull elephants.
Greater sage-grouse survive in a massive sea of sagebrush that stretches across 11 American states.
Visit Mount Everest's Khumbu Icefall, the Grand Canyon, and the slopes of Mount Kilimanjaro.
Discover new archeological evidence that suggests Troy and the Trojan War may be more than myth.
Investigate how and why life-sized terracotta statues were made for Emperor Qin Shi Huang of China.
Follow an investigation of the hidden dangers of vitamins and supplements, a multi-billion-dollar industry with limited FDA oversight.