Barry fights the Reverse-Flash outside the building in episode 1x09 "The Man in the Yellow Suit". The crew loads up their prisoners into the transport truck, and later Barry and others battle Wells outside the building in episode 1x22 "Rogue Air". Caitlin and Ronnie get married by Dr. Stein outside the building in episode 1x23 "Fast Enough". From episode 2x01 "The Man Who Saved Central City". From episode 2x06 "Enter Zoom". Zombie Tony Woodward bursts out of the building in episode 2x21 "The Runaway Dinosaur". Barry and Oliver fight the rest of the assembled team after they are mind controlled in episode 3x08 "Invasion!". H.R. gets ready to launch the S.T.A.R. Labs museum in episode 3x10 "Borrowing Problems from the Future". Cisco challenges the collector to trial by combat to save H.R in episode 3x11 "Dead or Alive". Barry and Jesse help Wally test his speed and Wally has a vision of Savitar in episode 3x15 "The Wrath of Savitar".
Oliver and Laurel watch Lance's press conference about the new low level of crime in Starling City in episode 3x01 "The Calm".
Oliver and Felicity talk after leaving the board meeting at Queen Consolidated in episode 3x01 "The Calm".
Etta and Simon sneak Walter into Manhattan through this mass transit station in episode #419 "Letters of Transit".