Movies Filmed at West Burnaby United Church6050 Sussex Ave, Burnaby, BC V5H 3C2, Canada
The Legends head to King Arthur's court where they find Courtney Whitmore AKA Stargirl who is protecting a piece of the spear in episode 2x12 “Camelot/3000”.
Amiens Cathedral 
Tolkien takes the Legends to a church where the remains of the crusader is located in episode 2x15 “Fellowship of the Spear”.
Flynn and Anthony prepare to head back to stop the moon landing in episode 1x08 “Space Race”. Flynn keeps Lucy captive briefly in his lair while he investigates the aftermath of their attempt on Rittenhouse in episode 1x11 “The World's Columbian Exposition”.
Source: What's Filming