National Geographic Channel

'S2/E3 - Beneath The Surface'. A station where some pass through - and others stay.

'S1/E2 - Cosmic Alignment'. Around the world, architectural marvels stand as conduits to the cosmos.

'S1/E6 - Jose Rodriguez'. A CIA director faces fallout when an enhanced interrogation program is exposed.

'S1/E4 - Bridging The Divide'. When bridges collapse, smarter, safer designs are sparked for future engineers.

'Oklahoma City Bombing: One Day in America. S1/E1 - Explosion'. A massive bomb explodes outside a federal building in Oklahoma City. As the day unfolds, Oklahomans face chaos, panic and heartbreaking decisions.