Hawkman lands Kendra Saunders on a rooftop after taking her in episode 2x08 "Legends of Today".
The police corner Geomancer in a square and Jay Garrick arrives on Velocity 7 in episode 2x13 "Welcome to Earth-2".
Black Siren destroys the Mercury Labs building in episode 2x22 "Invincible".
Barry and Jesse chase the two criminals outside and up a building but Barry is trapped in a mirror after having to catch Jesse in episode 3x04 "The New Rogues".
Kara leaves her symbol on the roof to draw out Reign and then confronts her when she arrives in episode 3x09 "Reign".
Kara and Reign smash into an office holiday party and smash up the place during their fight in episode 3x09 "Reign".
Ben Lockwood ambushes Lena in the lobby to ask about his father's foundry in episode 4x03 "Man of Steel".