Comstock Center Rooftops is the fourth chapter in BioShock Infinite, and it starts when players enter The Blue Ribbon Restaurant at the end of the previous chapter.
Now that he found some weapons, Booker DeWitt must fight off the enemies he encounters on the rooftops that lead to the Monument Island Gateway, because the girl he needs to rescue is supposed to be on that island.
The locations of all BioShock Infinite collectibles in Chapter 4 are revealed in the next collectibles guide, and it is advised to be used in combination with the screenshots at the end of the guide.
Kinetoscope #1
As soon as you enter The Blue Ribbon Restaurant turn left to see the first BioShock Infinite Comstock Center Kinetoscope (actually, there are three Kinetoscopes collectibles next to each other).
A Look Back At Opening Day!

Kinetoscope #2
The second BioShock Infinite Kinetoscope in Comstock Center is in the same place as the Kinetoscope mentioned above.
The Prophet Stands Up to Foes: Within and Without!
Kinetoscope #3
Next to the previous Kinetoscopes is also the third BioShock Infinite Comstock Center Kinetoscope.
We Secede From the So-Called Union
Voxophone #1
Immediately after you acquire the shield, you can collect the first BioShock Infinite Voxophone in Comstock Center, inside the kitchen. It is on the left side, on top of the sideboard.
HALF A JEW, Ed Gaines; March the 1st, 1912

Voxophone #2
After you get the machine gun, fight off the enemies until you reach a roof that has skylights.
Break the windows to drop down inside the house (or you can use the balcony). Then use the stairs (only the first two sets of stairs) to find a smaller bedroom.
Inside, on a shelf, is the second BioShock Infinite Comstock Center Voxophone.
OTIS NIMBLE FINGERS; Byron Cotswold; June the 23rd, 1912

Kinetoscope #4
When you get outside the house with the printing machines, turn right (it doesnt matter which door you use to exit). Pass the vending machine, behind the tent, is the fourth BioShock Infinite Kinetoscope in Chapter 4.
Danger on All Sides!

Voxophone #3
From the previous BioShock Infinite collectible, head down the stairs, where the stage is located. Search for the third BioShock Infinite Comstock Center Voxophone on the stage.
A NEW HUNT; Preston E. Downs; June the 29th, 1912

Voxophone #4
After you enter the building thats behind the statue depicting Comstock killing a serpent, cross the lobby and head inside the room thats on the left side (as your facing the statue of John Wilkes Booth).
The fourth BioShock Infinite Voxophone in Comstock Center is on the counter.
THE GIFT OF THE EMANCIPATOR; Zachary Hale Comstock; April the 14th, 1905

Voxophone #5
Next, follow the stairs to reach a large hall with many cultists. After you get rid of them, go downstairs to locate the fifth BioShock Infinite Voxophone on one of the benches.
THE LIE OF THE EMANCIPATOR; Zachary Hale Comstock; April the 14th, 1905

Voxophone #6
After you use the elevator, you arrive in an area with a video projector. Head inside the room to your left and search the desk thats on the other end of the room to find the sixth Voxophone.
SYMBOLS OF OUR LADY; First Zealot; January the 6th, 1912

Telescope #1
Next, you need to defeat a new type of enemy in order to acquire the Murder of Crows Vigor. After you kill the soldiers with your new Vigor, head outside and look toward the gondola station.
You should see a floating gondola next to your location (it is parked alongside the balcony).
Jump on the gondola and look through the BioShock Infinite Comstock Center Telescope.
The next chapter, Monument Island Gateway, starts after you use the grappling hook one last time before entering the gondola station.


