That's, what real TTN Community Berlin members are dreaming about.
This picture shows the famous "Berlin Funkturm", who is known world wide, as we suppose here.
It has been taken a few days ago by me from the temporary rooftop-lounge of Radio Berlin Brandenburg (rbb), 14th floor, nearby in the evening.
It's open until Dec.29th, 2017, from 18:00-24:00 for free. But expect strong security checks....
You may always use this picture with reference to LoRaWAN TTN Berlin :) for free.