From episode 1x07 "Echoes".
From episode 1x08 "Needs".
From episode 1x10 "Haunted".
From episode 2x05 "The Public Eye".
The Dolls depart and arrive through an underground loading dock.
The rooftop where Alpha straps dynamite to one of Echo's former lovers. You can see the police go through the deck on the westernmost tower.