On a recent trip to Seoul, good weather and clear skies allowed me to play with light trails of the traffic heading towards the Lotte World Tower in Seoul... there is also a fabulous view from the top which you can see on my Facebook / Instagram feeds
Taken on the Phase One IQ250 using a Mamiya AF 105-210mm (@ 105mm, 2.5sec, f11) and Nisi Nighttime filter...