Petra: Lost City of Stone
Follow an archaeologist and sculptors to learn how the people of Petra built their city of stone.
More than 2,000 years ago, the thriving city of Petra rose up in the bone-dry desert of what is now Jordan. An oasis of culture and abundance, the city was built by wealthy merchants who carved spectacular temple-tombs into its cliffs, raised a monumental Great Temple and devised an ingenious system that channeled water to vineyards, bathhouses, fountains and pools. But following a catastrophic earthquake and a slump in its desert trade routes, Petra's unique culture faded and was lost to most of the world for nearly 1,000 years. Watch now
Airing: Sunday, March 1 at 7:00pm.
Thursday, March 19 at 11:00pm.
Istanbul's magnificent Hagia Sophia has survived on one of the world's most active seismic faults, which has inflicted numerous earthquakes since the structure was built in 537 AD.
As Istanbul braces for the next big quake, a team of architects and engineers is investigating Hagia Sophia's seismic secrets. NOVA follows the team's discoveries as they examine the building's unique structure and other ingenious design strategies that have insured the dome's survival. Watch now
Airing: Sunday, March 22 at 7:00pm.
Thursday, March 26 at 11:00pm.
Millions of people around the world live in the shadow of active volcanoes. Under constant threat of massive volcanic eruptions, their homes and their lives are daily at risk from these sleeping giants. From Japan's Mount Fuji to the "Sleeping Giant" submerged beneath Naples to the Yellowstone "supervolcano" in the United States, travel with scientists from around the world who are at work on these sites, attempting to discover how likely these volcanoes are to erupt, when eruptions might happen and how deadly they could prove to be.
Airing: Sunday, March 29 at 7:00pm.
Thursday, April 2 at 11:00pm.