I'm already planning the next trip to Prague this winter. The city is pure magic full of beautiful photo locations. Here I went on a twilight shoot to get an empty view of the charles Bridge. At 70mm and f/8 I needed some focus stacking here to get everything sharp. The photo was 120 seconds exposed, was still quite dark and twilight just started to color the sky.
If you're interested in focus stacking and how my images get that look check out my start2finish tutorial. Infos can be found on my blog -> Start2Finish Post Processing Tutorial
No secrets in there :-)
cheers