Had an interesting time processing this image, with some surprising new findings. I wanted to lower the brightness of the building so I made 2 copies of the image in lightroom (one brighter the other darker) and opened both as layers in photoshop, nothing new here so far. Once I brought the exposure more into how I wanted to look, I decided since I was in Photoshop, I might as well use Nik Define to help with the noise, which worked ok. Still in photoshop, I thought why not try Nik Colr Efex 4 and see if I find something I like. Enter the Bleach Bypass filter, all I can say is wow, it did a great job with contrast in the milky way and star filled sections of the image. I must remember this for later.