If you are looking for urban city pictures with some skyscrapers, downtown Denver is perfect. I take pictures on top of the Ampco Parking lot on Lincoln street in Denver. The top floor of this parking lot is usually empty in the weekends.
The address is Ampco System Parking on 1855 Lincoln street in Denver.
If you book downtown Denver with me, I need you to park your car inside the garage as a thank you payment to the owner of the garage for using their top floor for pictures.
See below how to get there and some sample pictures.
Ampco System Parking Denver - Lincoln street