Niagara's Hidden Marvel

Exploring a royal retreat caught in a web of corruption, an engineering marvel hidden behind the Niagara Falls in Canada, and a subterranean treasure.

Guest Stars (8)

Sascha Auerbach as Self

Jim Meigs as Self

Rob Bell as Self

Dougal Jerram as Self

Lynette Nusbacher as Self

Dominic Selwood as Self

Alicia Gutierrez-Romine as Self

Katherine Landdeck as Self