Mysteries of the Abandoned S4, E3

The world's most incredible engineering projects are revisited to uncover why places full of mysteries and untold secrets are now abandoned ruins.

Cast:Steven Kearney , Dominic Selwood , Michele Mitchell , Kasper Michaels , Rob Bell , Andrew Gough , Lynette Nusbacher , Sascha Auerbach , Saul David , Lucie Green , Martin Archer , Daniel Dickrell , Geoffrey Wawro , Roma Agrawal , James Meigs , Alicia Gutierrez-Romine , Andrew Lambert , James S. Corum