Tuesday, April 3 at 8 p.m. — Learn how the tension between technological achievement and environmental impact hangs over the legacy of Grand Coulee Dam.

Tuesday, September 27 at 8 p.m. — A business card uncovers California underground secrets, a shotgun from a bloody gang massacre, and a Society Circus tied to FDR’s New Deal.

Tuesday, July 19 at 8 p.m. — A propeller from a WWII drone, a wooden club that could be Teddy Roosevelt’s, and a Clara Barton letter.

Monday, February 8 at 9 p.m. — Traces the evolution of the tactics, moral conundrums, and internal battles that took place between Allied forces.