“Reign” Filming Locations

Reign leaves her symbol all over the city leading Kara to track down an ancient Kryptonian prophecy detailing the end of days.

Supergirl episode “Reign” was filmed in Vancouver in Canada.

Guinness Tower as CatCo Worldwide Media

Kara leaves her symbol on the roof to draw out Reign and then confronts her when she arrives.

9790 198b Street as J'onn's Garage

J'onn sends Kara and that guy off on their space adventure.