This building opened in 1934 as a veterans treatment center for veterans of the First World War. This included the main building as well as the separate Veterans Dining Block. The main building was expanded in 1945 and reopened in 1949 as the Crease Clinic of Psychological Medicine, a short-term psychological treatment center. Now used almost exclusively for film production.
Shawna Baez uses her teleportation to break Clay Parker out of prison in episode 1x12 “Crazy for You”. Joe and Barry question James Jesse in his secure cell in episode 1x17 “Tricksters”. Weather Wizard is breaks Captain Cold and The Trickster out of prison in episode 2x09 “Running to Stand Still”.
Echo leads the Sky People through the hidden tunnels underneath Polis in episode 3x03 “Ye Who Enter Here”. Murphy and Pike saves Bellamy's group and they run the elevator up to the top of the tower in episode 3x15 “Perverse Instantiation: Part One”.
Raymon County State Psychiatric Hospital (interior)
Mulder and Scully go inside the hospital to question Billy Miles and Peggy O'Neil and Mulder is able to confirm that Peggy has the bumps on her back in pilot episode.
Bethesda Naval Hospital
Mulder & Scully are summoned by some mysterious government agents to investigate some strange deaths in episode 1x06 “Shadows”.
Our Lady of Sorrows Hospital
Scully calls Mulder from the hospital where she is working to let him know about Tad Tad O'Malley in episode 10x01 “My Struggle”. The agents talk to Sister Mary about the involvement of Augustus Goldman with the hospital in episode 10x02 “Founder's Mutation”.
Mulder and Scully interview Arkie Seavers with his lawyer present in episode 11x03 “Plus One”.
Erindale Apartments (interior)
Mulder and Scully question the landlord at the apartment building about the mysterious tenants upstairs and then Mulder heads to the basement to search for Scully in episode 11x09 “Nothing Lasts Forever”.
The students practice casting spells without their voices in episode 1x07 “The Mayakovsky Circumstance”. Quentin visits the recovering Alice briefly in her room before heading off to Fillory in episode 2x12 “Ramifications”. Quentin gives Alice a potion to prevent her from harming herself and then returns later with a plateful of bacon in episode 2x13 “We Have Brought You Little Cakes”.
Mike is held and interrogated in a magic-proof cell in episode 1x08 “The Strangled Heart”. Quentin is held in a werewolf-proof cell under the school while Professor Lipson examines his condition. Later Julia wakes up inside the isolation cell in episode 2x09 “Lesser Evils”.
Rip, Snart, and Sara attempt to gain the assistance of the Bratva in breaking into the prison in episode 1x05 “Fail-Safe”.
Koshmar Gulag 
Dr. Stein is thrown into a holding cell at Savage's base in episode 1x04 “White Knights”. The team infiltrates the gulag where Stein, Ray, and Rory are being held in episode 1x05 “Fail-Safe”.
Harmony Falls Sheriff's Department (exterior) 
Snart and Rip head to the local sheriff's department to discuss the murders in episode 1x08 “Night of the Hawk”.
NYC Street 
The Legends are heading back to the ship when they are confronted by the Justice Society of America in episode 2x01 “Out of Time”. The Legends end up fighting and are captured by the JSA in episode 2x02 “The Justice Society of America”.
Clive and Liv talk after interviewing Jason in episode 1x10 “Mr. Berserk”.
Major has a group therapy session at the treatment center he checked himself into in episode 1x10 “Mr. Berserk”. One of Major's fellow patients is murdered in episode 1x11 “Astroburger”.
Outer Ring Checkpoint
The smuggler Bruce tries to reassure Annie Wallace as they bribe their way through a checkpoint in episode 4x03 “Brainless in Seattle, Part 1”. The delegates pass through the checkpoint on their way into the city and on their way out Dr. Bishop scratches a few of them during their checkups in episode 5x08 “Death of a Car Salesman”.
Annie Wallace expreses her doubts about climbing a ladder to the surface but the smuggler Bruce Holtz reassures her in episode 4x03 “Brainless in Seattle, Part 1”.
Beanpole Bob's Lab (interior)
Five years ago, Stacey Boss talks to Martin Roberts about his brand new drug Utopium and a year later Scott E arrives and picks up the tainted batch in episode 5x08 “Death of a Car Salesman”.
Kara fights with Hank Henshaw who has been transformed into Cyborg Superman and then she escapes through tunnels with Mon-El in episode 2x07 “The Darkest Place”.
Deegan performs unethical experiments in the opening and after being defeated he is locked up next door to Psycho-Pirate in episode 4x09 “Elseworlds, Part 3”.
White House Tunnels
Eve condescendingly briefs Snowbird on her mission while they sneak underground in maintenance uniforms in episode 4x17 “All About Eve”.
Lena and Kara use some leverage on the warden to gain access to Lex's old cell so they can search for evidence in episode 4x18 “Crime and Punishment”. Lena prepares to test Non Nocere on a group of inmate volunteers and learns something important that she was missing in episode 5x14 “The Bodyguard”.
The Ormfell Building (exterior/basement)
William helps Kara with the livestream in front of the building and later, after the evacuation, Councilwoman Rankin informs everyone about the vote in episode 6x10 “Still I Rise”. Kara summons Mxy but learns Nxyly wanted her to summon him in episode 6x11 “Mxy in the Middle”. Kara, Brainy, and J'onn follow the 5th-Dimensional energy into the basement where they find Kelly and Diggle already investigating the strange glow in episode 6x12 “Blind Spots”.
Vanessa and Axel climb out of the tunnel after leaving the hospital in episode 1x03 “Stay Inside”.
The resistance discusses plans for the future in episode 1x04 “Coming Back”. Sheema brings the plans for the tunnels to the resistance in episode 1x05 “Fear Her”. Sheema is interrogated after the failed mission in episode 1x06 “Nothing Matters”.
From episode #105 "Fear Her".
Tunnel under Julius's Lair
Vanessa and Susan flee Julius through the tunnels under his lair in episode 1x05 “Fear Her”. They continue escaping through the tunnels in episode 1x06 “Nothing Matters”.
The resistance is ambushed while attempting to sneak into the vampire lair in episode 1x06 “Nothing Matters”.
Kate and Sophie are caught kissing and asked to sign a document denying it or be expelled from their military school in pilot episode. Jacob talks to Sophie before the hearing and convinces her of the risks involved with telling the truth in episode 1x07 “Tell Me the Truth”.
Wonderland Gang Hideout
Crows Security raids a Wonderland Gang hideout but find it empty in episode 1x02 “The Rabbit Hole”.
Kate wakes up after her encounter with Alice and finds herself in an illegal clinic run by her step-sister Mary in pilot episode. Kate visits Mary's clinic to get one of the members of the Wonderland Gang who Mary is treating to take a message to Alice in episode 1x02 “The Rabbit Hole”. Mary gives a kid an injection in episode 1x03 “Down Down Down”.
Sophie patches up Julia's shoulder and Luke visits Mary to talk about Reggie Harris.
Kate interrogates her captive Dodgson to learn about Alice in episode 1x02 “The Rabbit Hole”. Kate interrogates Alice for her grand plan but Alice insists on taking her for a road trip in episode 1x05 “Mine Is a Long and a Sad Tale”.
Kate follows the tracker she implanted in Dodgson, knocks out the masked gang members, and kidnaps Alice in episode 1x05 “Mine Is a Long and a Sad Tale”. The Rifle brings Alice payment in exchange for the anti-Batwoman gun in episode 1x07 “Tell Me the Truth”.
Alice poses as a Crows agent to visit Mouse under guard and learns about her doppelgänger in episode 1x12 “Take Your Choice”.
Mouse is locked back up in the high security wing of Arkham to be experimented upon by Dr. Butler in episode 1x16 “Through the Looking-Glass”. Ryan bribes the guard to get in to see Alice and learns something about her past in episode 2x18 “Power”. Alice is hopeful after receiving several letters from her father while she meets with both Mary and Ryan in episode 3x01 “Mad as a Hatter”.
Mary visits Alice to find her attempting some homemade electroshock.
Alia Nazari's Apartment
Sophie finds Alia Nazari dead in her apartment and is almost killed herself by a sniper before being saved by Julia Pennyworth in episode 1x16 “Through the Looking-Glass”.
Ryan, Luke, and Sophie are locked up after the incident at The Hold Up in episode 2x14 “And Justice for All”.
Gotham City Parole Board
Ryan talks to the parole board at her hearing and convinces them to end her parole in episode 2x18 “Power”.
A family watches Black Mask's broadcast in episode 2x18 “Power”.
Mary and Alice follow Kiki to her old lab to repair the joy buzzer in episode 3x11 “Broken Toys”. Alice has a hallucination of Mouse as she is heading to force Kiki to hand over the buzzer in episode 3x12 “We're All Mad Here”.