Leonard Snart sees the black hole suck up buildings in episode #123 "Fast Enough".
Barry and the team stake out of the gallery where the Turtle plans on stealing a painting in episode #210 "Potential Energy".
The Dodger forces a guard to steal a priceless gem for him in episode #115 "Dodger".
Oliver gives testimony about what occurred on the island and then has a run-in with Laurel at the courthouse in episode #102. Tommy intercepts Laurel as she is leaving work in episode #103. Oliver has a hearing here when he is accused of being the Vigilante in episode #105. Laurel prosecutes a case here in episode #310. Darhk is put on trial in episode #416.
Oliver is perp-walked up the steps into the police department while being swarmed by press in episode #105 "Damaged.
Diggle and Carly talk about their relationship while strolling through a park in episode #115 "Dodger".
The Dodger attempts to sell his stolen gem to Cass Derenick but the fence tries to rip him off in episode #115 "Dodger".
Liv meets Major when he is released on bail only for him to be arrested by Clive for another crime in episode #218 "Dead Beat".
The outside of the metro station where the team stop Diane Burgess from exploding in episode #203 "Fracture".
Peter meets in a congressional meeting room, and then Fauxlivia, Walter, and Peter talk on the steps of the capitol building at the end of episode #301 "Olivia".
Walternate receives a phone call about Olivia's escape in episode #308 "Entrada".
Olivia goes undercover to stop the attack on the art show in episode #312 "Concentrate and Ask Again".
Max drives her motorcycle into the courtroom and drops off the witness in episode #109 "Red".
The pilot episode includes a scene of Joseph Adama in the courtroom. This was filmed in the Vancouver Art Gallery's heritage courtrooms. The exterior of the building was also used as the exterior of the courthouse.
Backstrom meets with the civilian oversight committee and has a panic attack during his testimony in episode #104 "I Am a Bird Now".
Backstrom confronts Cassandra Lastrange after she talks to Charles Turner in episode #101 "Dragon Slayer". Gravely and ADA Kines convince a judge to give them a warrant on the steps to the courthouse in episode #110 "Love Is a Rose and You Better Not Pick It". Backstrom and Amy have a fight on the steps in episode #112 "Corkscrewed".
Karen's court appearance in episode #106 "Low Art" were filmed in the heritage courtrooms.
Vice President Maccabee is sworn in on the steps of the capitol building in episode #101.
Emma takes Izzy up the roof during their first date in episode #103 "No Penetration".